author = { Ludwig, Günther },

title = { Fortschritte der projektiven Relativitätstheorie },

publisher = {Vieweg},

keywords = { Relativity (Physics) , Projektive Relativitätstheorie , Mechanik },

year = {1951},

abstract = {Rückent.: Ludwig: Projektive Relativitätstheorie},

booktitle = {Die Wissenschaft ; 105},

address = { Braunschweig },

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