@article{SIGMA_2009_5_a86,
     author = {Mark Green and James Carlson and Phillip Griffiths},
     title = {Variations of {Hodge} {Structure} {Considered} as an {Exterior} {Differential} {System:} {Old} and {New} {Results}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2009},
     volume = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2009_5_a86/}
}