Remarks concerning the canonical formulation of field equations
Séminaire Janet. Mécanique analytique et mécanique céleste, Volume 1  (1957-1958), Talk no. 8, 14 p.
@article{SJ_1957-1958__1__A8_0,
     author = {Lanczos, C.},
     title = {Remarks concerning the canonical formulation of field equations},
     journal = {S\'eminaire Janet. M\'ecanique analytique et m\'ecanique c\'eleste},
     publisher = {Secr\'etariat math\'ematique},
     volume = {1},
     year = {1957-1958},
     note = {talk:8},
     language = {en},
     url = {http://www.numdam.org/item/SJ_1957-1958__1__A8_0}
}
Lanczos, C. Remarks concerning the canonical formulation of field equations. Séminaire Janet. Mécanique analytique et mécanique céleste, Volume 1 (1957-1958) , Talk no. 8, 14 p. http://www.numdam.org/item/SJ_1957-1958__1__A8_0/