Where can I find articles about the history of weekday shaharit prayers? I have identified many articles published since the mid-1960's in RAMBI, but I would also like to find articles published earlier in the 20th century.
Joseph Tabory's magnificent bibliography Jewish Prayer and the Yearly Cycle רשימת מאמרים בענייני תפילה ומועדים , published as a Supplement to volume 64 of Kiryat Sefer (The Jewish National and University Library, 1993) is a comprehensive listing of articles, in Hebrew and European languages, published from the mid-1800's up to the 1990's.
It covers not only individual prayers and prayer services, but also historical aspects of Jewish prayer, prayer in specific geographic and ethnic communities, Shabbat and the holidays, the reading the Torah, the language of prayer, concepts expressed in the liturgy, and more.
Tabory has compiled corrections and additions to this bibliography, published with his facsimile edition of the 1628 Siddur Hanau סידור הנאו שפ"ח : מהדורה פקסימילית : עם פרקי מבוא ונספח ביבליוגרפי (Bar Ilan University, 1994). Reference BM 656 S5
Jewish Prayer and the Yearly Cycle is located in the JTS Library’s Reference collection at Z6371.L5 T3 1993