@book {AHS,
 AUTHOR = {Ad{\'a}mek, Ji{\v{r}}{\'\i} and Herrlich, Horst and Strecker,
 George E.},
 TITLE = {Abstract and concrete categories},
 PUBLISHER = {John Wiley \& Sons Inc.},
 ADDRESS = {New York},
 YEAR = {1990},
 PAGES = {xiv+482},
 ISBN = {0-471-60922-6},
 MRCLASS = {18-02 (08C05 18A20 18B30 54B30)},
 MRNUMBER = {91h:18001},
 MRREVIEWER = {Saunders Mac Lane},
}
@article {Ch58,
 AUTHOR = {Chang, C. C.},
 TITLE = {Algebraic analysis of many valued logics},
 JOURNAL = {Trans. Amer. Math. Soc.},
 VOLUME = {88},
 YEAR = {1958},
 PAGES = {467--490},
 MRCLASS = {02.00 (06.00)},
 MRNUMBER = {20 \#821},
 MRREVIEWER = {B. A. Galler},
}
@article {Ch59,
 AUTHOR = {Chang, C. C.},
 TITLE = {A new proof of the completeness of the {\L}ukasiewicz axioms},
 JOURNAL = {Trans. Amer. Math. Soc.},
 VOLUME = {93},
 YEAR = {1959},
 PAGES = {74--80},
 MRCLASS = {02.25},
 MRNUMBER = {23 \#A58},
 MRREVIEWER = {A. Rose},
}
@article {Ch,
 AUTHOR = {Chang, C. L.},
 TITLE = {Fuzzy topological spaces},
 JOURNAL = {J. Math. Anal. Appl.},
 VOLUME = {24},
 YEAR = {1968},
 PAGES = {182--190},
 MRCLASS = {54.10 (94.00)},
 MRNUMBER = {38 \#5153},
 MRREVIEWER = {R. F. Drenick},
}
@book {Gierz,
 AUTHOR = {Gierz, Gerhard and Hofmann, Karl Heinrich and Keimel, Klaus
 and Lawson, Jimmie D. and Mislove, Michael W. and Scott, Dana S.},
 TITLE = {A compendium of continuous lattices},
 PUBLISHER = {Springer-Verlag},
 ADDRESS = {Berlin},
 YEAR = {1980},
 PAGES = {xx+371},
 ISBN = {3-540-10111-X},
 MRCLASS = {06B30 (03G10 30G30 54H12)},
 MRNUMBER = {82h:06005},
 MRREVIEWER = {James W. Lea, Jr.},
}
@article {Go67,
 AUTHOR = {Goguen, J. A.},
 TITLE = {${L}$-fuzzy sets},
 JOURNAL = {J. Math. Anal. Appl.},
 VOLUME = {18},
 YEAR = {1967},
 PAGES = {145--174},
 MRCLASS = {94.20 (06.00)},
 MRNUMBER = {36 \#7435},
 MRREVIEWER = {S. Csibi},
}
@article {Go73,
 AUTHOR = {Goguen, J. A.},
 TITLE = {The fuzzy {T}ychonoff theorem},
 JOURNAL = {J. Math. Anal. Appl.},
 VOLUME = {43},
 YEAR = {1973},
 PAGES = {734--742},
 MRCLASS = {54A05},
 MRNUMBER = {49 \#6116},
 MRREVIEWER = {C. K. Wong},
}
@book {HS,
 AUTHOR = {Herrlich, Horst and Strecker, George E.},
 TITLE = {Category theory},
 PUBLISHER = {Heldermann Verlag},
 ADDRESS = {Berlin},
 YEAR = {1979},
 PAGES = {xii+400},
 ISBN = {3-88538-001-3},
 MRCLASS = {18-01 (18-02)},
 MRNUMBER = {81e:18001},
}
@article {Ho91,
 AUTHOR = {H{\"o}hle, Ulrich},
 TITLE = {Monoidal closed categories, weak topoi and generalized logics},
 JOURNAL = {Fuzzy Sets and Systems},
 FJOURNAL = {Fuzzy Sets and Systems. International Journal of Soft
 Computing and Intelligence},
 VOLUME = {42},
 YEAR = {1991},
 NUMBER = {1},
 PAGES = {15--35},
 ISSN = {0165-0114},
 CODEN = {FSSYD8},
 MRCLASS = {03G30 (03E72 04A72)},
 MRNUMBER = {92i:03071},
 MRREVIEWER = {R. Gylys},
}
@incollection {Ho92,
 AUTHOR = {H{\"o}hle, Ulrich},
 TITLE = {${M}$-valued sets and sheaves over integral commutative ${\rm
 cl}$-monoids},
 BOOKTITLE = {Applications of category theory to fuzzy subsets (Linz, 1989)},
 PAGES = {33--72},
 PUBLISHER = {Kluwer Acad. Publ.},
 ADDRESS = {Dordrecht},
 YEAR = {1992},
 MRCLASS = {03G30 (03B50 03E72 18B99)},
 MRNUMBER = {93c:03086},
 MRREVIEWER = {R. Gylys},
}
@incollection {Ho94,
 AUTHOR = {H{\"o}hle, Ulrich},
 TITLE = {Commutative, residuated $l$-monoids},
 BOOKTITLE = {Non-classical logics and their applications to fuzzy subsets
 (Linz, 1992)},
 PAGES = {53--106},
 PUBLISHER = {Kluwer Acad. Publ.},
 ADDRESS = {Dordrecht},
 YEAR = {1995},
 MRCLASS = {03G25 (06F05)},
 MRNUMBER = {96f:03052},
}
@article {HoSO95,
 AUTHOR = {H{\"o}hle, Ulrich and {\v{S}}ostak, Alexander P. },
 TITLE = {A general theory of fuzzy topological spaces},
 JOURNAL = {Fuzzy Sets and Systems},
 FJOURNAL = {Fuzzy Sets and Systems. International Journal of Soft
 Computing and Intelligence},
 VOLUME = {73},
 YEAR = {1995},
 NUMBER = {1},
 PAGES = {131--149},
 ISSN = {0165-0114},
 CODEN = {FSSYD8},
 MRCLASS = {54A40 (04A72)},
 MRNUMBER = {96e:54004},
}
@incollection {HoSO99,
 AUTHOR = {H{\"o}hle, Ulrich and {\v{S}}ostak, Alexander P.},
 TITLE = {Axiomatic foundations of fixed-basis fuzzy topology},
 BOOKTITLE = {Mathematics of fuzzy sets},
 PAGES = {123--272},
 PUBLISHER = {Kluwer Acad. Publ.},
 ADDRESS = {Boston, MA},
 YEAR = {1999},
 MRCLASS = {54A40},
 MRNUMBER = {1 788 903},
}
@misc {HPS1,
 AUTHOR = {H{\"o}hle, Ulrich and Porst, Hans-E. and {\v{S}}ostak,
 Alexander P.},
 title={Fuzzy functions: A fuzzy extension of the category SET},
 howpublished={In: FSTA 2000 (Abstracts of a conference), Liptovski 
 Mikula\v{s}, Slovakia, January 3--February 4, 2000},
}
@article {HPS2,
 AUTHOR = {H{\"o}hle, Ulrich and Porst, Hans-E. and {\v{S}}ostak,
 Alexander P.},
 TITLE = {Fuzzy functions: a fuzzy extension of the category {S}{E}{T}
 and some related categories},
 JOURNAL = {Appl. Gen. Topol.},
 FJOURNAL = {Applied General Topology},
 VOLUME = {1},
 YEAR = {2000},
 NUMBER = {1},
 PAGES = {115--127},
 ISSN = {1576-9402},
 MRCLASS = {03E72 (18A05 54A40)},
 MRNUMBER = {2001j:03097},
 MRREVIEWER = {Ying Ming Liu},
}
@book {Jhst,
 AUTHOR = {Johnstone, Peter T.},
 TITLE = {Stone spaces},
 PUBLISHER = {Cambridge University Press},
 ADDRESS = {Cambridge},
 YEAR = {1982},
 PAGES = {xxi+370},
 ISBN = {0-521-23893-5},
 MRCLASS = {54-02 (06Dxx 18B30)},
 MRNUMBER = {85f:54002},
 MRREVIEWER = {Andreas Blass},
}
@article {Lo76,
 AUTHOR = {Lowen, R.},
 TITLE = {Fuzzy topological spaces and fuzzy compactness},
 JOURNAL = {J. Math. Anal. Appl.},
 VOLUME = {56},
 YEAR = {1976},
 NUMBER = {3},
 PAGES = {621--633},
 MRCLASS = {54A05},
 MRNUMBER = {55 \#13357},
 MRREVIEWER = {C. K. Wong},
}
@article {So89,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 TITLE = {Two decades of fuzzy topology: the main ideas, concepts and
 results},
 JOURNAL = {Uspekhi Mat. Nauk},
 FJOURNAL = {Akademiya Nauk SSSR i Moskovskoe Matematicheskoe Obshchestvo.
 Uspekhi Matematicheskikh Nauk},
 VOLUME = {44},
 YEAR = {1989},
 NUMBER = {6(270)},
 PAGES = {99--147, 203},
 ISSN = {0042-1316},
 MRCLASS = {54A40 (01A60 03E72)},
 MRNUMBER = {91a:54010},
 MRREVIEWER = {Abd El-Sattar Dabbour},
 note={English translation in Russian Math. Surveys 44 (1989), no. 6, 
 125--186},
}
@incollection {So91,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 TITLE = {Towards the concept of a fuzzy category},
 BOOKTITLE = {Mathematics (Russian)},
 PAGES = {85--94},
 PUBLISHER = {Latv. Univ.},
 ADDRESS = {Riga},
 YEAR = {1991},
 MRCLASS = {18A99 (04A72 54A40)},
 MRNUMBER = {93h:18006},
}
@misc {So92,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 title={On a concept of a fuzzy category}, 
 note={14th Linz Seminar on Fuzzy Set Theory: Non-Classical Logics 
 and Their Applications, Linz, Austria},
 year={1992},
 pages={63--66},
}
@article {So96,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 TITLE = {Basic structures of fuzzy topology},
 JOURNAL = {J. Math. Sci.},
 FJOURNAL = {Journal of Mathematical Sciences},
 VOLUME = {78},
 YEAR = {1996},
 NUMBER = {6},
 PAGES = {662--701},
 ISSN = {1072-3374},
 CODEN = {JMTSEW},
 MRCLASS = {54A40},
 MRNUMBER = {98d:54018},
}
@incollection {So97,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 title={Fuzzy categories versus categories of fuzzily structured sets: 
 Elements of the theory of fuzzy categories},
 booktitle={Categorical Methods in Algebra and Topology (A collection of 
 papers in honor of Horst Herrlich), (Bremen, August 1997), Hans-E. Porst 
 ed.},
 series={Mathematik-Arbeitspapiere},
 number={48},
 pages={407--438},
 publisher={Universit\"at Bremen},
 year={1997},
}
@article {So99,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 TITLE = {Fuzzy categories related to algebra and topology},
 NOTE = {Fuzzy sets, Part I (Liptovsk\'y J\'an, 1998)},
 JOURNAL = {Tatra Mt. Math. Publ.},
 FJOURNAL = {Tatra Mountains Mathematical Publications},
 VOLUME = {16},
 YEAR = {1999},
 NUMBER = {, part I},
 PAGES = {159--185},
 ISSN = {1210-3195},
 MRCLASS = {18A05 (20N25 54A40)},
 MRNUMBER = {1 725 294},
}
@incollection {So2000,
 author = {{\v{S}}ostak, Alexander P.},
 title={Fuzzy functions as morphisms in an extension of the category 
 $L$-TOP},
 booktitle={CATMAT2000: Proc. Conf. Categorical Methods in Algebra and 
 Topology (Bremen 2000)},
 publisher={Universit\"at Bremen},
 year={2000},
 pages={385--402},
 number={54},
 series={Mathematik-Arbeitspapiere},
} 
@article {So2001,
 AUTHOR = {{\v{S}}ostak, Alexander P.},
 title={Fuzzy functions as morphisms in an extension of the category
 ${U}nif({L})$ of {H}utton ${L}$-uniform spaces},
 journal={Vestn. Kyrg. Gos. Ped. Univ. Ser. Mat. Fiz. Inform.},
 year={2001},
}