- TU Wien, UC San Diego create X rays beyond textbooks  NewsBytes
- Scientists just broke a textbook rule of physics  Science Daily
- Physicists produce X-ray photons above the usual energy threshold — ScienceDaily  UA.NEWS
​TU Wien, UC San Diego create X rays beyond textbooks  NewsBytesScientists just broke a textbook rule of physics  Science DailyPhysicists produce X-ray photons above the usual energy threshold — ScienceDaily  UA.NEWS by Soban News (international And National News)
