D. Gorbachev, S. Tikhonov, “Doubling condition at the origin for non-negative positive definite functions”, Proc. Amer. Math. Soc., 147:2 (2019), 609–618
D. Virosztek, “Applications of an intersection formula to dual cones”, Bull. Aust. Math. Soc., 97:1 (2018), 94–101
Д. В. Горбачев, В. И. Иванов, “Об условии удвоения для положительно определенных функций на полуоси со степенным весом”, Чебышевский сб., 19:2 (2018), 90–100
A. Efimov, M. Gaal, S. G. Revesz, “On integral estimates of nonnegative positive definite functions”, Bull. Aust. Math. Soc., 96:1 (2017), 117–125
Alexander Bessolitsyn, “II (The State and Branch Congresses of Entrepreneurs in Russia at the End of Xix Beginning of Xx Century)”, SSRN Journal, 2016