Explicit numerical computation of normal forms for Poincaré maps, now in Communications in Nonlinear Science and Numerical Simulation from our colleague M. Jorba-Cuscó and his collaborators J. Gimeno, A. Jorba and M. Zou.
This publication is dedicated to the memory of A. Jorba.
Check it out here to learn more:
https://www.sciencedirect.com/science/article/pii/S1007570425003247