1. Der Aufbau der Chromosomen aus den Speicheldrüsen von Chironomus Thummi Kiefer;Bauer;Zeitschr. f. Zellforsch. u. mikr. Anat.,1935
2. Multiple chromosome complexes in the metamorphosis of Culex pipiens;Berger;Anat. Rec.,1936
3. Additional evidence of repeated chromosome division without mitotic activity;Berger;Am. Nat.,1937
4. Prophase pairing in somatic cells with multiple chromosome complexes;Berger;Genetics,1938a
5. Berger , C. A. 1938b Multiplication and reduction of somatic chromosome groups as a regular developmental process in the mosquito, Culex pipiens 209 232