A little ancient history.
Dickerson
R E
RE
Molecular Biology Institute, University of California, Los Angeles 90024.
D001671:Biochemistry / Q000266:history; D004739:England; D006454:Hemoglobins / Q000266:history*; D049673:History, 20th Century; D009211:Myoglobin / Q000266:history*; D011487:Protein Conformation; D014961:X-Ray Diffraction
D006454:Hemoglobins; D009211:Myoglobin