Geodesic
A generalization of the contact transformation and their application in continuum mechanics
Theoretical and applied mechanics, Tome 7 (1981) no. 1, p. 83 
Stevo Komljenović. A generalization of the contact transformation and their application in continuum mechanics. Theoretical and applied mechanics, Tome 7 (1981) no. 1, p. 83 . http://geodesic.mathdoc.fr/item/TAM_1981_7_1_a9/
@article{TAM_1981_7_1_a9,
     author = {Stevo Komljenovi\'c},
     title = {A generalization of the contact transformation and their application in continuum mechanics},
     journal = {Theoretical and applied mechanics},
     pages = {83 },
     year = {1981},
     volume = {7},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAM_1981_7_1_a9/}
}
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Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

The paper considers a generalization of S. Lie's theory to the case of several functions and isoperimetric problems in continuum mechanics. Using the group of tangent transformations and using the invariance) of the action integral as well as the "coercion" integral, conservation laws are formed.