1. E. Abe Hopf Algebras (Cambridge University Press, Cambridge, 1977).
2. Zimmermann type cancellation in the free Faà di Bruno algebra;Anshelevich;J. Funct. Anal.,2006
3. N. N. Bogoliubov D. V. Shirkov Introduction to the Theory of Quantized Fields (Interscience Pub. Inc., New York, 1959).
4. Ch. Brouder Quantum groups and interacting quantum fields, in: Group 24: Physical and Mathematical Aspects of Symmetries, edited by J.-P. Gazeau, R. Kerner, J.-P. Antoine, S. Métens, and J.-Y. Thibon, Institute of Physics Conference Series Vol. 173 (Institute of Physics Publishing, Bristol, 2003), pp. 787-790.
5. Green function hierarchy for open shells;Brouder;Europhys. Lett. EPL,2005