* https://savolai.net/case-studies/regular-expressions-you-can-read/

* http://hnrankings.info/11700725/

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* User Experience Design in Open Source: Inviting the Users

https://savolai.net/ux/user-experience-design-in-open-source-inviting-the-users/

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* https://savolai.net/

* https://stackoverflow.com/users/198955/savolai-%e1%af%93