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Willibald Seifert

  • Ueber die integration der differential gleichung (t-a)(t-b)(t-c) d²y/dt² + (a+bt+ct²) dy/dt + (d+et)y=0 ..Ueber die integration der differential gleichung (t-a)(t-b)(t-c) d²y/dt² + (a+bt+ct²) dy/dt + (d+et)y=0 ..