1. Cancer detection and therapy. Affinity of neoplastic, embryonic and traumatized tissues for porphyrins and metalloporphyrins;Figge,1948
2. Zur kenntnis der natürlichen porphyrine: XXIV. Mitteilung über hämatoporphyrin;Fischer;Z. physiol. Chem.,1929
3. Haemoglobin in relation to other metallo-haematoporphyrins;Hill;Biochem.J.,1925
4. The chemistry and metabolism of some porphyrins and porphyrin derivatives;Kennedy,1953
5. Some observations on blood pigments;Laidlaw;J. Physiol.,1904