Основные газопроводы из России в Европу.
<a href="//commons.wikimedia.org/wiki/User:Nzeemin" title="User:Nzeemin">Nzeemin</a>
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<span class="int-own-work" lang="en">Own work</span> based on <a href="//commons.wikimedia.org/wiki/File:Major_russian_gas_pipelines_to_europe.png" title="File:Major russian gas pipelines to europe.png">File:Major russian gas pipelines to europe.png</a>