Poisson Process
[1] The Probability Course: Introduction to Poisson Processes
[2] MIT OpenCourseWare: Merging and Splitting Poisson Processes
[3] Statistics LibreTexts: The Poisson Process
[4] Henery Stark, John W. Woods, Probability and Random Processes with Applications to Signal Processing, Third Edition, Pearson Education International
[5] Sheldon M. Ross, Introduction to Probability Models , Tenth Edition, University of Southern California Los Angeles, California