References
- Amprino, R. and Engstrom, A. (1952) Studies on X-ray absorption and diffraction of bone tissue. Acta anat., 15, p. 1.
- Engfeldt, B. and Engstrom, A. Biophysical studies on bone tissue. XII. Experimentally produced ectopic bone tissue. Acta Orthop. Scandinav.
- Engfeldt, B. and Hjertquist, S. -O. (1954) Biophysical studies on bone tissue. X. The in vivo and in vitro uptake of radioactive isotopes and ionic exchange reactions in bone tissue. Acta path. et Microbiol. Scand., 35, p. 205.
- Engstrom, A. (1946) Quantitative micro- and histochemical elementary analysis by roentgen absorption spectrography. Acta radiol. Suppl., 63
- Engstrom, A. (1953) X-ray methods in histochemistry. Physiol. rev., 33, p. 190.