%0 Book
%A B. Thalheim, J. Demetrovics, H.-D. Gerhardt )eds.(
%T MFDBS 91 : 3rd Symposium on Mathematical Fundamentals of Database and Knowledge Base Systems, Rostock, Germany, May 6-9, 1991 : proceedings
%U /book/101373531/MFDBS-91-3rd-Symposium-on-Mathematical-Fundament/