1. The blood group system L. - A new blood group L2;Andresen;Acta pathologica,1948
2. An incomplete agglutinin related to the L(Lewis)-system;Andresen;Acta path. microbiol. scand.,1949
3. Observations on the human group system Lewis;Grubb;Acta path. microbiol. scand.,1951
4. The Lewis blood group in children;Jordal;Acta path. microbiol. scand.,1956
5. The Lewis blood factors in American Negroes;Miller;Amer. J. phys. Anthrop.,1954