@MISC{YELLOW14.MIZ,
  AUTHOR = {Gryko, Jaros{\l}aw and Korni{\l}owicz, Artur},
  TITLE = {Some Properties of Isomorphism between Relational Structures.
       {O}n the Product of Topological Spaces},
  NOTE = {This work has been supported by KBN Grant 8 T11C 018 12.},
  SECTION1 = {Preliminaries},
  SECTION2 = {Some Properties of Isomorphism between Relational Structures},
  SECTION3 = {On the Product of Topological Spaces},
  DAY = {22},
  MONTH = {June},
  YEAR = {1999},
  ADDRESS1 = {University of Bia{\l}ystok},
  ADDRESS2 = {University of Bia{\l}ystok}}

