%0 Journal Article %A Takano Y. %A Nagashima Y. %A Herranz M.A. %A Martín, Nazario %A Akasaka T. %T Thermodynamically stable [4 + 2] cycloadducts of lanthanum-encapsulated endohedral metallofullerenes %D 2014 %U http://hdl.handle.net/20.500.12614/2383 %~