Crestani, F.. "Application of Spreading Activation Techniques in Information Retrieval." Artificial Intelligence Review 11 , no. 6 (1997): 453--482.
Salton, G. and Buckley, C.. "On the use of spreading activation methods in automatic information." Paper presented at the meeting of the SIGIR '88: Proceedings of the 11th annual international ACM SIGIR conference on Research and development in information retrieval, New York, NY, USA, 1988.