Values of dirichlet series at integers in the critical strip -- Analytic properties of euler products of automorphic representations -- Modular forms of weight 1/2 -- Dimensions des espaces de formes modulaires -- Facteurs gamma et รฉquations fonctionnelles -- Modular forms whose fourier coefficients involve zeta-functions of quadratic fields -- Correction to โ{128}{156}The eichler-selberg trace formula on SL2(?)โ{128}{157} -- A lifting of modular forms in one variable to hilbert modular forms in two variables -- Theta functions over Q and over Q(?q) -- Sรฉries thรชta des formes quadratiques indรฉfinies -- Automorphic forms and Artin's conjecture -- Relations between automorphic forms produced by theta-functions -- The ring of hilbert modular forms for real quadratic fields of small discriminant -- On zeta-functions of rankin type associated with siegel modular forms