Baran, M., Bialas-Ciez, L., Eggink, R., Kowalska, A., la Nagy, B., & Pierzcha?a, R..  (2017).  Selected open problems in potential approximation and potential theory. Dolomites Research Notes on Approximation, 10(Special_Issue), 161-168. presented at the 06/2017.

Baran, M., Kowalska, A., Milo?wka, B., & Ozorka, P..  (2015).  Identities for a derivation operator and their applications. Dolomites Research Notes on Approximation, 8(Special_Issue), 102-110. presented at the 12/2015. doi:10.14658/pupj-drna-2015-Special_Issue-10