@article{Trybus:2020,
author
=
"A.Trybus and B.Linsky",
title
=
"On Jan Łukasiewicz's "The Principle of Contradiction and Symbolic Logic"",
journal
=
"History and Philosophy of Logic",
volume
=
"Vol. 41",
number
=
"issue 2",
pages
=
"183--190",
year
=
"2020",
}