@article{BSL4_2_Vanderveken,
author = {Daniel R. VANDERVEKEN},
title = {An Extension of Leśniewski-Curry's Formal Theory of Syntactical Categories Adequate for the Categorically Open Functors},
journal = {Bulletin of the Section of Logic},
volume = {4},
number = {2},
year = {1975},
pages = {78--79}
}