1. Bernt E, Bergmeyer HU, Mollering H (1970) Creatin. In: Bergmeyer HU (ed) Methoden der Enzymatischen Analyse. Verlag Chemie, Weinheim, vol. 2, pp 1724?1728
2. Beutler E (1971) In: Beutler E (ed) Red cell metabolism. A manual of biochemical methods. Grune and Stratton, New York, pp 59?119
3. Chen PS, Toribara TY, Warner H (1956) Microdetermination of phosphorus. Anal Chem 28:1756?1758
4. Fedelesova M, Ziegelhoffer A, Krause EG, Wollenberger A (1969) Effect of exogenous adenosine triphosphate on the metabolic state of the excised hypothermic dog heart. Circulation 25:617?627
5. Grandi AM, Muggia C, Barzizza F, Venco A, Finardi G (1988) Improved left ventricular function after short-term treatment with fructose-1,6-diphosphate: echocardiographic study in chronic ischemic heart disease and idiopathic dilated cardiomyopathy. Clin Ther 10:372?380