For illustrative purposes, A. A. Burykin mentions several dozens of unpublished recordings from the early 20th century stored at only a single institution in Russia, the Phonogrammic Archives of the Institute of Literature of the Russian Academy of Sciences. The production of new materials or even the re-edition of previously recorded data outside of Russia comes to a stop during the second half of the 19th century, with only a handful of exceptions, including, notably, the publication in Paris of the collections of Gerhard von Maydell and Alexander Czekanowski by Anton Schiefner, who had earlier been instrumental in making Castren’s materials available to the scholarly world.