@article{VMUMM_2009_2_a12,
     author = {S. L. Kuznetsov},
     title = {Lambek calculus with one division and one primitive type permitting empty antecedents},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {62--65},
     publisher = {mathdoc},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2009_2_a12/}
}