Future problems of phototopography in Fr
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Raymond Martin
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Article
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1938
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Elsevier Science
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simpler ,in,strument,s d,es~gned to fill the gap between high-precision aerial mapping machines and the plain direct-vision stereoseope. These instruments are, in G.erumny the Zeis.s Multiplex, and in Italy the Multiple Nistri, both of which .are bas,ed o,i~ tile ana.glyph method. These two instrum