On the law of Zipf-Mandelbrot for multi-word phrases

Term dependence: a basis for Luhn and Zipf models

Journal of the American Society for Information Science and Technology

Maximum likelihood estimation for constrained parameters of multinomial distributions-Application to Zipf-Mandelbrot models

Computational Statistics & Data Analysis

Extending Zipf's law to n-grams for large corpora

Artificial Intelligence Review

General study of the distribution of N-tuples of letters or words based on the distributions of the single letters or words

Mathematical and Computer Modelling: An International Journal

The exact rank-frequency function and size-frequency function of N-grams and N-word phrases with applications

Mathematical and Computer Modelling: An International Journal