Sommaire du Fascicule no. 1
About semiboundness of $\delta$-perturbations of the Laplacian supported by curves with angle points
p. 3-17
Sommaire du Fascicule no. 2
p. 208-213
p. 225-245
p. 246-255
Sommaire du Fascicule no. 3
p. 429-437
p. 478-490