Alon, Noga; Spencer, Joel (2008). The probabilistic method. Wiley-Interscience Series in Discrete Mathematics and Optimization (third ed.). Hoboken, NJ: John Wiley and Sons. pp. 87, 110, 115–119, 120–121, 123, 128, 157–148, 160 (Second edition). ISBN978-0-470-17020-5. MR2437651.
Page 508 in Koroljuk, V. S.; Borovskich, Yu. V. (1994). Theory of U-statistics. Mathematics and its Applications. Vol. 273 (Translated by P. V. Malyshev and D. V. Malyshev from the 1989 Russian original ed.). Dordrecht: Kluwer Academic Publishers Group. pp. x, 552. ISBN0-7923-2608-3. MR1472486.
Pages 381–382 in Borovskikh, Yu. V. (1996). U-statistics in Banach spaces. Utrecht: VSP. pp. xii, 420. ISBN90-6764-200-2. MR1419498.
Page xii in Kwapień, Stanisƚaw; Woyczyński, Wojbor A. (1992). Random series and stochastic integrals: Single and multiple. Probability and its Applications. Boston, MA: Birkhäuser Boston, Inc. pp. xvi+360. ISBN0-8176-3572-6. MR1167198.