TY - JOUR AU - Isangulov, R.R. TI - Isospectral flat orientable 2-orbifolds. JO - Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only] PY - 2006 PB - Institut Matematiki Im. S.L. Soboleva, SO RAN VL - 3 SP - 60 EP - 61 LA - eng KW - Laplace-Beltrami operator; compact flat orientable orbifold UR - http://eudml.org/doc/53296 ER -