Serebrov, A. P.; Kolomensky, E. A.; Fomin, A. K.; Krasnoschekova, I. A.; Vassiljev, A. V.; Prudnikov, D. M.; Shoka, I. V.; Chechkin, A. V.; Chaikovskiy, M. E.; Varlamov, V. E. New Neutron Lifetime Measurements With the Big Gravitational Trap and Review of Neutron Lifetime Data. KEn 2018, 3, 121–128.