De imitatione Christi libri quatuor : sacrae scripturae concordantia, et J.M. Horstii notis illustrati. - Thomas : a Kempis, <ca. 1380-1471>. (OLS)http://semarc/name/11742; Horstius, Jacobus Merlus. (OLS)http://semarc/name/113617 (Typis Societatis S. Joannis ev. : Desclée, Lefebvre & Soc.,, 1887)