found: Library of Congress Music Division concert, 1993-03-26 [SR] 1993:program notes (Borromeo String Quartet; Nicholas Kitchen, Ruggero Allifranchini, violins; En Sik Choi, viola; Yeesun Kim, violoncello)
found: Ravel, M. String quartet [SR] 2000?:label (Borromeo Quartet)
found: Wikipedia, August 22, 2013(Borromeo String Quartet; American string quartet, in residence at the New England Conservatory since 1992; formed in 1989)
found: Borromeo String Quartet WWW site, August 22, 2013(Borromeo String Quartet; Nicholas Kitchen, Kristopher Tong, violins; Mai Motobuchi, viola; Yeesun Kim, cello)