@MISC{GROUP_1.MIZ,
  AUTHOR = {Trybulec, Wojciech A.},
  TITLE = {Groups},
  DAY = {03},
  MONTH = {July},
  YEAR = {1990},
  ADDRESS1 = {Warsaw University},
  SUMMARY = {Notions of group and abelian group are introduced. The power
of an element of a group, order of group and order of an element of a group
are defined. Basic theorems concerning those notions are presented.}}

