Langton's loops - Wikipedia

Langton's ant - Rosetta Code

Lancton Facebook, Instagram & Twitter on PeekYou

Lantto Facebook, Instagram & Twitter on PeekYou

Von Neumann universal constructor - Wikipedia

Cellular automaton - Wikipedia

GitHub - frtts/Langtons-Loop-Processing

Chapter 3

Langton's ant - Rosetta Code

Langton's loops - Wikipedia