The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
A.S. Chikhachev, “About Focusing by Grids”, in Proc. 26th Russian Particle Accelerator Conf. (RuPAC'18), Protvino, Russia, Oct. 2018, paper TUPSA13, pp. 172-174, ISBN: 978-3-95450-197-7, https://doi.org/10.5072/JACoW-RuPAC2018-TUPSA13, http://jacow.org/rupac2018/papers/tupsa13.pdf, 2018.