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by Strauss, Gerhard Friedrich Abraham
by Strauss, Gerhard Friedrich Abraham Strau
by Muller, Gerhard Friedrich; Pallas, Peter Simon
by Ansel, Michael; Friedrich, Hans-edwin; Lauer, Gerhard
by Dietmar Jannach , Markus Zanker , Alexander Felfernig , Gerhard Friedrich
by Wahl, Friedrich Gerhard
by Hauck, Friedrich; Schwinge, Gerhard
by Kittel, Gerhard; Bromiley, Geoffrey W.; Friedrich, Gerhard