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@article{MZ_1981__177_173049, author = {Walter Benz}, title = {A {Beckmann} {Quarles} {Type} {Theorem} for {Plane} {Lorentz} {Transformations.}}, journal = {Mathematische Zeitschrift}, pages = {101--106}, publisher = {mathdoc}, volume = {177}, year = {1981}, zbl = {0438.51015}, url = {http://geodesic.mathdoc.fr/item/MZ_1981__177_173049/} }
Walter Benz. A Beckmann Quarles Type Theorem for Plane Lorentz Transformations.. Mathematische Zeitschrift, Tome 177 (1981), pp. 101-106. http://geodesic.mathdoc.fr/item/MZ_1981__177_173049/