1. The purification of toxin from Clostridiunt botulinurm type A;ABRAMS A.;J. Biol. Chem.,1946
2. Effect of calcium chloride on the preparation of extracts of H. pertussis;BURRELL J. I.;Science,1948
3. A simplified procedure for purification of Clostridium botulinum type A toxin;DUFF J. T.;Bacteriol. Proc.,1952
4. Studies on the production and purification of Clostridium botulinum type B toxin;DUFF J. T.;Bacteriol Proc..,1954
5. Studies on botulinum toxoids, types A and B. II. Methods for determining antigenicity in animals;HOTTLE G. A.;J. Immunol.,1947