TY - JOUR ID - 21934ac T1 - 1987 A1 - Ritchot, Dominique JO - Ciel variable IS - 3-4 SP - 17 EP - 21 SN - 0831-3091 Y1 - 1987 Y2 - 03/28/2024 10:31 a.m. PB - Les Productions Ciel Variable inc. LA - FR UR - https://id.erudit.org/iderudit/21934ac L1 - https://www.erudit.org/en/journals/cielvariable/1987-n3-4-cielvariable1066498/21934ac.pdf DP - Érudit: www.erudit.org DB - Érudit ER -