There is a mistake in all the references for chapters included in kibrik2001 (Bagvalal grammar) in the biblib table.
Although the list of authors is correct in the entry referring to the volume itself (Кибрик, Александр Е. and Казенин, Константин И. and Лютикова, Екатерина А. and Татевосов, Сергей Г.), the entries referring to single chapters included in this volume for some reason do not include Казенин, Константин И. in the editor column.