V. Y. Maksimchuk, M. I. Orlyuk, V. I. Tregubenko, Y. M. Gorodiski, V. P. Myasoedov, і E. Nakalov, «Ground-based absolute magnetic survey on the backbone network of points of the secular passage in Ukraine for the era of 2005», GJ, т. 32, вип. 5, с. 102–116, Жов 2010.