His Joannis Schefferi Argentoratensis De antiquorum torquibus, 1656.
InU/Wing STC files (usage: John Scheffer)
LC data base, May 2, 1986 (hdg.: Scheffer, Johannes, 1621-1679)
En bok om det svenska folkets minnesvärda exampel, c2005 t.p. (Johannes Schefferus)
Wikipedia, June 5, 2008 (Johannes Schefferus; b. Feb. 2, 1621; d. Mar. 26, 1679; one of the most important Swedish humanists of his time; professor Skytteanus of eloquence and government at Uppsala University)
Wikipedia (German), June 5, 2008 (Johannes Scheffer)