Depth First Search, Also & Example, Graph traversal
5.1 Graph Traversals - BFS & DFS -Breadth First Search and Depth
Depth-first search - Wikipedia
algorithms - Difference between edges in Depth First Trees
Depth-First Search (DFS) and Breadth-First Search (BFS) for noobs
8.6.5 Depth-First Order and Depth-First Spanning Trees
Tree, Back, Edge and Cross Edges in DFS of Graph - GeeksforGeeks
Breadth First Search Tutorials & Notes, Algorithms
An illustration of the concepts defined on a depth-first search