1. The attachments of chromosomes at the reduction division in flowering plants;Belling;Jour. of Gen.,1927
2. Der Zusammenhang zwischen den Chromosomen und den Mutationen bei Oenothera Lamarckiana;Boedijn;Rec. d. Trav. bot. Néer.,1925
3. Chromosomen und Pollen der Oenotheren;Boedijn;Rec. d. Trav. bot. Néer.,1928
4. The reduction divisions in the pollen mother cells of Oenothera franciscana;Cleland;Amer. Jour. of Bot.,1922
5. Chromosome arrangement during meiosis of certain Oenotheras;Cleland;Amer. Nat.,1923