Publisher chapter: link.springer.com/chapter/10.1007/978-3-319-55456-3_3
Consulted passage: Chapter3, Diffusion Equations, section3.1, explicit finite-difference discretization of one-dimensional diffusion and Forward Euler update. Publisher lists chapter pp207–322, first online22June2017, both authors. This is a whole-book source card; cite the chapter in its locator.