https://www.cv.imm.uran.ru/e/3241417-the-analysis-of-visual-parallel-programming-languages Averbukh V., Bakhterev M., The analysis of visual parallel programming languages // ACSIJ. Advances in Computer Science: an International Journal, Vol. 2, Issue 3, No. 4, July 2013. Pp. 126-131. (ISSN : 2322-5157) http://www.acsij.org/documents/v2i3/ACSIJ-2013-2-3-181.pdf.