Charles A Hasemann, Eva S. Istvan, Kosaku Uyeda & Johann Deisenhofer: The crystal structure of the bifunctional enzyme 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase reveals distinct domain homologies. Structure, 1996, 4. vsk, nro 9, s. 1017–1029. Artikkelin verkkoversio. Viitattu 23.9.2011. (englanniksi)