2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54445In this review I discuss some recent results concerning D=4 doubly supersymmetric membranes within the framework of geometrical approach obtained in the collaboration with Igor Bandos, Dmitrij Sorokin and Dmitrij Volkov.7 pages. LATEX. Submitted to the Proc. of the Xth International Workshop on HEP\&QFT, Zvenigorod, Russia, 1995, September 20-26High Energy Physics - Theorytext