Funding for this research was provided by:
the fundamental research funds for Heilongjiang provincial universities (The study on error spreading depression in network coding)
Suihua technology office program (SHKJ2015-015, SHKJ2015-014)
National Science foundation of China (61571150)
Education Office of Heilongjiang province science and technology program (2016-KYYWF-0937)
Received: 7 November 2017
Accepted: 11 March 2018
First Online: 27 March 2018
: The authors declare that they have no competing interests.
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