no. 1
Singularity problems in linear elastodynamics
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 18 (1991) no. 1, pp. 103-133. 
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     author = {Carbonaro, Bruno and Russo, Remigio},
     title = {Singularity problems in linear elastodynamics},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {103--133},
     publisher = {Scuola normale superiore},
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     url = {http://www.numdam.org/item/ASNSP_1991_4_18_1_103_0/}
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Carbonaro, Bruno; Russo, Remigio. Singularity problems in linear elastodynamics. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 18 (1991) no. 1, pp. 103-133. http://www.numdam.org/item/ASNSP_1991_4_18_1_103_0/

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