• Each layer has a set of connections that link it to the other layers of the network, making the network a directed acyclic graph.
  • http://proglang.su/html/introduction http://www.sitehere.ru/category/osnovy-html http://nesmelov.ru/ http://www.wisdomweb.ru/HTML/html-first.php.
  • 4. Модификаторы доступа. http://www.javenue.info/post/java-modifiers-summary http://www.quizful.net/post/features-of-the-application-of-modifiers-in-java.
  • https://pythonworld.ru/samouchitel-python https://losst.ru/osnovy-programmirovaniya-python http://pythontutor.ru/.