W. M. Gregg Hansen, O. D. Lashko, V. F. Ushkalov, T. F. Mokryi, I. Y. Malysheva, and I. A. Mashchienko, “COMPREHENSIVE MODERNIZATION OF BOGIES 18-100 TO REDUCE WHEEL WEAR AND IMPROVE RIDE QUALITY OF FREIGHT CARS”, STP, no. 5, pp. 215–219, Dec. 2004.