4: Meditationes devotissimae - Guillaume : de Saint-Thierry, <ca. 1085-1148>. (OLS)http://semarc/name/89163; Poncelet, Albert <sj ; 1861-1912>. (OLS)http://semarc/name/27762; Ceglar, Stanislaus, <sdb>. (OLS)http://semarc/name/27465; Verdeyen, Paul, <sj, 1935- >. (OLS)http://semarc/name/89164 (Guillelmi a Sancto Theodorico Opera omnia)
Appendix: Epistola Matthaei Albanensis episcopi, Responsio abbatum auctore Willelmo abbate Sancti Theodorici / cura et studio Stanislai Ceglar ; Vita antiqua / cura et studio Alberti Poncelet