I first posted posted this at Zillas, but since I find lately that I repeatedly need to reference this information, I've posted it here.
INTER INSIGNIORES (1976)
This explains the Scriptural and Traditional basis against ordination of women.
ORDINATIO SACERDOTALIS (1994)
Pope John-Paul II puts his foot down:
"Wherefore, in order that all doubt may be removed regarding a matter of great importance, a matter which pertains to the Church's divine constitution itself, in virtue of my ministry of confirming the brethren (cf. Lk 22:32) I declare that the Church has no authority whatsoever to confer priestly ordination on women and that this judgment is to be definitively held by all the Church's faithful."
Cardinal Joseph Ratzinger (1995)
Paraphrase: "Yes, the Pope really means it"