TY - BOOK AU - Borger E ED - Workshop on Computer Science Logic( 3rd : 1989 : FRG ) ED - Workshop on Computer Science Logic 3rd TI - Computer science logic : proceedings SN - 3-540-52753-2 U1 - 5.131 PY - 1990/// CY - Berlin PB - Springer Verlag KW - Computer science ER -