TY - GEN TY - GEN T1 - An introduction to many-valued logics T2 - Monographs in modern chemistry A1 - Ackermann, Robert John LA - eng PP - London ; New York PB - Routledge & K. Paul : Dover Publications YR - 1967 UL - https://kansalliskirjasto.finna.fi/Record/fikka.182022 OP - 90 KW - Many-valued logic. ER -