TY - RPRT TI - Laboratory tests on 13 West German dental silicate cements by methods outlined in Federation Dentaire Internationale specification no. 5: progress report AU - Viohl, Jochen PY - 1966 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 9360 DO - 10.6028/NBS.RPT.9360 ER -