@article{BSL2_2_Kabzinski1,
author = {Jacek K. KABZIŃSKI},
title = {On Problems of Definability of Propositional Connectives (on the basis of Wajsberg's paper [9])},
journal = {Bulletin of the Section of Logic},
volume = {2},
number = {2},
year = {1973},
pages = {127--130}
}