Scale symmetry and virial theorem
Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 29 (1978) no. 4, pp. 415-422. 
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     author = {von Westenholz, C.},
     title = {Scale symmetry and virial theorem},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {415--422},
     publisher = {Gauthier-Villars},
     volume = {29},
     number = {4},
     year = {1978},
     mrnumber = {525391},
     zbl = {0402.53023},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1978__29_4_415_0/}
}
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von Westenholz, C. Scale symmetry and virial theorem. Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 29 (1978) no. 4, pp. 415-422. http://archive.numdam.org/item/AIHPA_1978__29_4_415_0/

[1] C. Von Westenholz, Differential forms in Mathematical Physics, North Holland, Amsterdam, 1978. | MR | Zbl

[2] C. Von Westenholz, Foundations of Physics, t. 7, 1977, p. 529. | MR