author = { Boccaletti, Dino AND Catoni, Francesco AND Catoni, Vincenzo },

title = { Space-Time Trigonometry and Formalization of the “Twin Paradox” for Uniform and Accelerated Motions },

publisher = {Springer Science and Business Media LLC},

isbn = {0188-7009},

isbn = {1661-4909},

keywords = { Applied Mathematics },

year = {2007},

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