@article{CRMATH_2002__334_4_343_0,
     author = {Michele Carriero and Antonio Leaci and Franco Tomarelli},
     title = {Necessary conditions for extremals of {Blake} & {Zisserman} functional},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {343--348},
     publisher = {Elsevier},
     volume = {334},
     number = {4},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02231-8},
     language = {en},
}