00301nam a2200121Ia 4500082001700000100002500017245004400042260003400086300001000120490003900130500000500169700000500174  a512bL367.FM  aLaudal, Olav Arnfinn  aFormal moduli of algebraic structuresb  aBerlinbSpringer-Verlagc1979  a161p.  aLecture notes in Mathematicsv 754  a  a