Tài liệu tham khảo WikiPedia: Andrey Andreyevich Markov http://cm.bell-labs.com/cm/ms/what/shannonday/shan... http://blog.wolfram.com/2013/02/04/centennial-of-m... http://data.bibliotheken.nl/id/thes/p069408742 http://www.genealogy.ams.org/html/id.phtml?id=1254... //doi.org/10.1002%2Fj.1538-7305.1948.tb01338.x http://worldcat.org/identities/lccn-n81-18668 http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&N... http://www.apmath.spbu.ru/ru/misc/markov.html http://www-history.mcs.st-andrews.ac.uk/Biographie... https://trove.nla.gov.au/people/929450
