1999 Monthly bulletins

• Monthly bulletin n°115 - December 1999

• Monthly bulletin n°114 - November 1999

• Monthly bulletin n°113 - October 1999

• Monthly bulletin n°112 - September 1999

• Monthly bulletin n°111 - August 1999

• Monthly bulletin n°110 - July 1999

• Monthly bulletin n°109 - June 1999

• Monthly bulletin n°108 - May 1999

• Monthly bulletin n°107 - April 1999

• Monthly bulletin n°106 - March 1999

• Monthly bulletin n°105 - February 1999

• Monthly bulletin n°104 - January 1999