%0 Journal Article %A Griffiths, Phillip %A Harris, Joe %T Infinitesimal variations of hodge structure (II) : an infinitesimal invariant of hodge classes %J Compositio Mathematica %D 1983 %P 207-265 %V 50 %N 2-3 %I Martinus Nijhoff Publishers %G en %F CM_1983__50_2-3_207_0