Hasselgren, G. (1977). Acid and alkaline phosphatases in hard tissue producing cells with special reference to the cells of the dental pulp. Department of Endodontics, University of Lund, School of Dentistry : Department of Oral Pathology, Karolinska Institute.

Hasselgren, Gunnar. Acid and Alkaline Phosphatases in Hard Tissue Producing Cells with Special Reference to the Cells of the Dental Pulp. Malmö : Stockholm: Department of Endodontics, University of Lund, School of Dentistry : Department of Oral Pathology, Karolinska Institute, 1977.

Hasselgren, Gunnar. Acid and Alkaline Phosphatases in Hard Tissue Producing Cells with Special Reference to the Cells of the Dental Pulp. Department of Endodontics, University of Lund, School of Dentistry : Department of Oral Pathology, Karolinska Institute, 1977.