1. Spontaneous and induced triploidy in pre-implantation mouse eggs;Beatty;Nature,1949
2. Experimentelle Herstellung von polyploiden Mausblastulen;Fischberg;Arch. Julius Klaus-Stiftung,1950
3. Somatic reduction: Diploid and triploid roots and a diploid shoot from a tetraploid Rhoeo;Huskins;Genetics,1950
4. Polyploidy in rabbits, induced by colchicine;Häggqvist;Nature,1950a
5. Chemical induction of polyploid breeds of mammals;Häggqvist;Kungl. Svenska Vetenskapsakad. Handl.,1950b