@MISC{ARYTM_3.MIZ,
  AUTHOR = {Bancerek, Grzegorz},
  TITLE = {Arithmetic of Non-Negative Rational Numbers},
  NOTE = {This work has been supported by KBN Grant 8 T11C 018 12.},
  SECTION1 = {Natural Ordinals},
  SECTION2 = {Relative Prime Numbers and Divisibility},
  SECTION3 = {Non-Negative Rationals},
  DAY = {07},
  MONTH = {March},
  YEAR = {1998},
  ADDRESS1 = {Bia{\l}ystok Technical University}}

