author = { Euh, Yunhee AND Park, JeongHyeong AND Sekigawa, Kouei },

title = { A Curvature Identity on a 4-Dimensional Riemannian Manifold },

publisher = {Springer Science and Business Media LLC},

isbn = {1422-6383},

isbn = {1420-9012},

year = {2013},

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