00783nam0-22002651i-450-990001126490403321000112649FED01000112649(Aleph)000112649FED0100011264920000920d1971----km-y0itay50------baengFoundations of the theory of Klein surfacesby Alling and Greenleaf.Berlin [etc.]Springer-Verlag1971Lecture Notes in Mathematics219Alling,Norman L.54135Greenleaf,NewcombITUNINARICAUNIMARCBK990001126490403321C-20-(21911338MA1MA1Foundations of the theory of Klein surfaces262835UNINAING01