Planar Graphs (author-hosted chapter preview)
= Planar Graphs (author-hosted chapter preview)
{c}
Online text: https://www.math.uni-hamburg.de/home/diestel/books/graph.theory/preview/Ch4.pdf
Cited passages: Section 4.4, printed page 111, Theorem 4.4.6, equivalence of planarity and exclusion of K5 and K3,3 minors.