at the request of the bpr's authorities, he prepared the notable informational "memorandum" ("foundations of statehood of belarus"), published in grodno and vilna in 1919 in belarusian, russian, polish, german and french languages; also translated to english by p. clark. this memorandum contained the historical ground for the necessity of creation of independent belarusian state and was presented at the versailles conference by the bpr's delegation, albeit without positive outcome.