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<http://webisa.webdatacommons.org/41719258>	<http://www.w3.org/ns/prov#value>	"ABSTRACT In this work it is discussed the wave propagation in an elastic medium, particularly along strings and the air." .
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<http://webisa.webdatacommons.org/41719258>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<scielo.br> .