«Sci-conf.com.ua» PerfectPublishing IX International Research and Practical Conference «INNOVATIONS AND PROSPECTS OF WORLD SCIENCE” April 28-30, 2021 Vancouver, Canada GENERAL INFORMATION Conference form: correspondence Internet conference. Languages: Ukrainian, Russian, English. As a result of the conference, a collection of articles will be published within 7 days, which is posted on the sci-conf.com.ua website in the...Read More