1. Mobile Commons Blog.
https://www.mobilecommons.com/blog/2016/01/how-text-messaging-will-change-for-the-better-in-2016/
2. SMS Blocker Award.
https://play.google.com/store/apps/details?id=com.smsBlocker&hl=en
3. TextBlocker.
https://play.google.com/store/apps/details?id=com.thesimpleandroidguy.app.messageclient&hl=en
4. Androidapp.
https://play.google.com/store/apps/details?id=com.mrnumber.blocker&hl=en
5. Puniškis, D., Laurutis, R., Dirmeikis, R.: An artificial neural nets for spam e-mail recognition. Elektronika ir Elektrotechnika 69, 73–76 (2006)