TY  - BOOK
AU  - Asperen de Boer,J.R.J.van
TI  - Infrared reflectography : a contribution to the examination of earlier European paintings
PY  - 1970///
CY  - Amsterdam, the Netherlands
PB  - Published by and available from the Central Research Laboratory for Objects of Art and Science
N1  - Summary in Dutch; Errata slip inserted
ER  -