@article{JEMS_2015_17_4_a10,
     author = {Saugata Bandyopadhyay and Bernard Dacorogna and Swarnendu Sil},
     title = {Calculus of variations with differential forms},
     journal = {Journal of the European Mathematical Society},
     pages = {1009--1039},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2015},
     doi = {10.4171/jems/525},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/525/}
}