@article{SIGMA_2024_20_a12,
     author = {David Saunders},
     title = {Lepage {Equivalents} and the {Variational} {Bicomplex}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2024},
     volume = {20},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2024_20_a12/}
}