Palaeontology

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Copenhagen, 1962.

LEVINSEN, G.M.R.

Kbhvn., 1925.

LUNDGREN, BERNHARD.

Lund, 1881.

PABST, WILHELM.

Halle, E. Karras, 1908.

GLIBERT, MAXIME.

Bruxelles, 1957.

GLIBERT, MAXIME.

Bruxelles, 1954.

MOBERG, JOH.CHR.

Stockh., 1888.

KAUTSKY, F.

Berlin, 1925.

DACQUÉ, EDGAR.

München, 1939.

ANDERSON, HANS-JOACHIM.

Stuttgart, 1959.

BIRKET-SMITH, S.J.R.

Kbhvn., 1977.

MORTENSEN, TH.

Copenhagen, 1904.

WEILER, WILHELM.

Berlin, 1942.

GEINITZ, HANNS BRUNO.

Dresden u. Leipzig, 1846.