Gerhard Ringel

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Gerhard Ringel, G. Ringel, 1977, J. Graph Theory.
Dragan Marusic, Brian Alspach, G. L. Chia, 1994, J. Graph Theory.
Nora Hartsfield, Brad Jackson, Gerhard Ringel, 1989, Discret. Math..
Gerhard Ringel, 1974 .
Brad Jackson, Gerhard Ringel, G. Ringel, 1983, Discret. Math..
Hanfried Lenz, Gerhard Ringel, G. Ringel, 1991, Discret. Math..
Gerhard Ringel, 1977, Discret. Math..
Brad Jackson, Gerhard Ringel, G. Ringel, 2000, Discret. Math..
Nora Hartsfield, Gerhard Ringel, 1991, Comb..
Nora Hartsfield, Gerhard Ringel, G. Ringel, 1994 .
Nora Hartsfield, Gerhard Ringel, G. Ringel, 1989, J. Comb. Theory, Ser. A.
Nora Hartsfield, Gerhard Ringel, 1990, Discret. Math..
Gerhard Ringel, 1974 .
Brad Jackson, Gerhard Ringel, G. Ringel, 1985, J. Comb. Theory, Ser. B.
Rainer Bodendiek, Gerhard Ringel, Rudolf Henn, 1990 .
Gerhard Ringel, 1974 .
Nora Hartsfield, Brad Jackson, Gerhard Ringel, 1985, Graphs Comb..
Gerhard Ringel, Richard K. Guy, 1976, J. Comb. Theory, Ser. B.
Gerhard Ringel, Mark Jungerman, 1978, J. Graph Theory.
Gerhard Ringel, 1993, J. Graph Theory.
Oriol Serra, Anna S. Lladó, Gerhard Ringel, 1997, Discret. Math..
Nora Hartsfield, Gerhard Ringel, 1989, J. Comb. Theory, Ser. B.
Gerhard Ringel, J.W.T. Youngs, 1969 .
Gerhard Ringel, G. Ringel, 1978 .
Gerhard Ringel, G. Ringel, J. Youngs, 1969 .
Gerhard Ringel, G. Ringel, B. Jackson, 1984 .
Gerhard Ringel, J.W.T. Youngs, 1969 .