Effect of Training and 15-, 25-, and 42-km Contests on the Skeletal Muscle Content of Adenine and Guanine Nucleotides, Creatine Phosphate, and Glycogen - van der Vusse, G J; Janssen, G M E; Coumans, W A; Kuipers, H; Does, R J M M; Hoor, F ten (International Journal of Sports Medicine, 1989)