author = { Klausen, Tom AND Breum, Leif AND S�rensen, Henrik Ancher AND Schifter, S�ren AND Sonne, Bente },

title = { Plasma levels of parathyroid hormone, vitamin D, calcitonin, and calcium in association with endurance exercise },

publisher = {Springer Science and Business Media LLC},

isbn = {1432-0827},

isbn = {0171-967X},

keywords = { Endocrinology , Orthopedics and Sports Medicine , Endocrinology, Diabetes and Metabolism },

year = {1993},

url = { http://slubdd.de/katalog?TN_libero_mab2 }