\input zb-basic \input zb-ioport \iteman{io-port 01501382} \itemau{Dvure\v{c}enskij, Anatolij; Kim, Hee Sik} \itemti{Connections between BCK-algebras and difference posets.} \itemso{Stud. Log. 60, No.3, 421-439 (1998).} \itemab The authors study the relations of BCK-algebras with quantum logic structures -- D-posets (difference posets), MV-algebras, quantum MV-algebras, orthoalgebras, orthomodular lattices. They present a series of results when a BCK-algebra and a quantum logic structure coincide. \itemrv{J.Tkadlec (Praha)} \itemcc{} \itemut{BCK-algebra; D-poset; MV-algebra; quantum MV-algebra; orthoalgebra; quantum logic structures; orthomodular lattices} \itemli{doi:10.1023/A:1005089629837} \end