TY - JOUR N2 - The author of the dissertation described two unpublished so far hand written musical Oktoihs (Znamenny chant) of the Old Believers from his private collection. Based on those manuscripts the author indicates the important codicological and paleographical features of musical writing of the Theodosian and Pomorian Old Believers. Furthermore, the author presents the structure of the Oktoih book used by the Old Believers and makes overview of the polish literature concerning the discussed issues. The aim of the dissertation is to encourage other collectors of ancient manuscripts to share their collections and elaborations with researchers. L1 - http://www.czasopisma.pan.pl/Content/112074/PDF/SO%202-19%203-D.Sawicki.pdf L2 - http://www.czasopisma.pan.pl/Content/112074 PY - 2019 IS - No 2 EP - 280 DO - 10.24425/slo.2019.128471 KW - liturgical singing of the Orthodox Church KW - znamenny chant KW - Pomorian old believers KW - Theodosian old believers A1 - Sawicki, Daniel PB - Komitet Słowianoznawstwa PAN VL - vol. LXVIII DA - 2019.06.25 T1 - From the Research of Liturgical Singing of the Old Believers. Two Neumatic Oktoihs SP - 261 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/112074 T2 - Slavia Orientalis ER -