http://www.developers-paradise.com/wp-content/uploads/2016/05/12-Nils-Preuss-State-of-import-in-Magento-2.pdf
http://www.slideshare.net/MaksymPronko/real-use-cases-of-performance-optimization-in-magento-2
http://www.slideshare.net/TonyBrown44/magento-2-and-avoiding-the-rabbit-hole
https://www.slideshare.net/MaksymPronko/key-insights-into-development-design-patterns-for-magento-2-magento-live-uk
http://www.slideshare.net/MaksymPronko/checkout-in-magento-2-by-max-pronko