Basic historical materials of the Nereditsa Church are kept at the State Russian Museum, the Novgorod State Museum, the Institute of History of Material Culture Sciences, methodological foundation of the State Academic Institute of Painting, Sculpture and Architecture named after I.E. Repin. The leading experts are: historians, art historians,
restorers, muralists, keepers of these organizations have assisted authors of the project and helped to find, analyze and collect a lot of important information.