Flaxman, A. and Frieze, A.M. and Fenner, Trevor (2003) High degree vertices and eigenvalues in the preferential attachment graph. In: Arora, S. and Jansen, K. and Rolim, J.D.P. and Sahai, A. (eds.) Approximation, Randomization, and Combinatorial Optimization: Algorithms and Techniques. Lecture Notes in Computer Science 2764. Springer, pp. 264-274. ISBN 9783540451983.