According to a review by Pascal Michelucci in the University of Toronto Quarterly 66.1 (1996/97), pp. 162-168 there are in fact two articles by Constans in this volume. I have not been able to identify more details. Here, however, is what Michelucci says about them (sorry, the accents were lost when I copied and pasted):
Ie doublet compIementaire [...]de Constans [...] montre bien Ie conflit de valeurs qui emerge du B.C.-B.C. dellyen et qui transparait dans I'actionneI sous forme d'un jeu de jonctions et de disjonctions. Dans son 'second article, Constans met bien Ie doigt sur ce «mariage de la morale chretienne et de la sensualite amoureuse» signale en son temps par de Rougemont comme celui de l'eau et du feu a propos de Tristan et Yseult. (165)
According to a review by Pascal Michelucci in the University of Toronto Quarterly 66.1 (1996/97), pp. 162-168 there are in fact two articles by Constans in this volume. I have not been able to identify more details. Here, however, is what Michelucci says about them (sorry, the accents were lost when I copied and pasted):
It seems that a version of this may also appear in Actes du colloque "Les mauvais genres" organisé au Centre culturel canadien de Paris les 23, 24 et 25 novembre 1989.