The oath of homage in the context of sovereignty change : On the significance of a legal relict in the case of the Polish-Lithuanian partitions (1772-1795) - Olschewski, Boris (. Strangers and poor people. - Frankfurt am Main [u.a.] : Lang, 2009. - 615 S.. - Ill., graph. Darst., Kt.. - ISBN 978-3-631-59947-1, 2009)