N. M. Hansen

Effects of Periodontal Disease and of Calculus Solvents on Microhardness of Cementum

R. Phillips, M. Swartz, M. Swartz, 1964 .

A comparative study of cyanoacrylate and other periodontal dressings on gingival surgical wound healing.

H. Swenson, N. M. Hansen, A. J. Ochstein, 1969, Journal of periodontology.