%0 Journal Article %A J. A. Alvarez-GarcĂ­a %T Non-archimedean Hilbert spaces and adjoint operators %J Extracta Mathematicae %D 1989 %P 117 %V 4 %N 2 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/EXMATH_1989__4_2_38319/ %G en %F EXMATH_1989__4_2_38319