deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 6e568f8..e2ddbad 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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series = {Mathematical Modeling and Information Technologies},  year = {2015},  pages={69--98},  howpublished url  = {\url{http://journals.krc.karelia.ru/index.php/mathem/article/view/135}}, }