A Method of Prayer for Modern Times by Jean Kovalevsky (1993, Trade Paperback) for sale online | eBay
Modern Astrometry | SpringerLink
Hommage à Jean Kovalevsky
Jean KOVALEVSKY | Canal Académies
Trajectories of Artificial Celestial Bodies as Determined from Observations / Trajectoires des Corps Celestes Artificiels Déterminées D'après les Observations | SpringerLink
ESA Science & Technology - Jean Kovalevsky
Applications of Computer Technology to Dynamical Astronomy: Proceedings of the 109th Colloquium of the International Astronomical Union, Held in Gaith a book by P. Kenneth Seidelmann and Jean Kovalevsky
An Orthodox Politics?: Saint Jean of Saint-Denis – Orthodox Diary