“…In particular, a standard modelization is by means of what is called mass-action kinetics, that we briefly recall below. We refer the readers to the surveys [6,7] and Chapter 5 in the book [5], as well as the book [9], for the history, basic definitions, examples, and important results, with an extensive bibliography. Together with Elisenda Feliu, we expect to complete an introductory book for students by 2021.…”