@MISC{RMOD_4.MIZ,
  AUTHOR = {Muzalewski, Micha{\l} and Skaba, Wojciech},
  TITLE = {Linear Combinations in Right Module over Associative Ring},
  DAY = {22},
  MONTH = {October},
  YEAR = {1990},
  ADDRESS1 = {Warsaw University\\Bia{\l}ystok},
  ADDRESS2 = {Nicolaus Copernicus University\\Toru\'n}}

