author = { Kalus, Christian AND Dadam, Peter },

title = { Incorporating record subtyping into a relational data model },

publisher = {Univ., Fak. für Informatik},

year = {1994},

booktitle = {Ulmer Informatik-Berichte ; 94,06},

address = { Ulm },

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