The spelling is compiled in accordance with the Primer by M. S. Vashulenko, O. V. Vashulenko. The lettering corresponds to the & laquo;Uniform patterns of calligraphic writing of numbers, Ukrainian and Russian letters and their compounds& raquo;, approved by the decision of the Board of the Ministry of Education and Science of Ukraine (Protocol № 8/2–19 of 18.07.2003).
