Remarks concerning the conformal deformation of riemannian structures on compact manifolds
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 3, Volume 22 (1968) no. 2, p. 265-274 
@article{ASNSP_1968_3_22_2_265_0,
     author = {Trudinger, Neil S.},
     title = {Remarks concerning the conformal deformation of riemannian structures on compact manifolds},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 22},
     number = {2},
     year = {1968},
     pages = {265-274},
     zbl = {0159.23801},
     mrnumber = {240748},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1968_3_22_2_265_0}
}

Trudinger, Neil S. Remarks concerning the conformal deformation of riemannian structures on compact manifolds. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 3, Volume 22 (1968) no. 2, pp. 265-274. http://www.numdam.org/item/ASNSP_1968_3_22_2_265_0/

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