Encoding in GAs

Sites

The evolution of hierarchical representations

https://link.springer.com/chapter/10.1007/3-540-59496-5_307

Vertical Seismic Profile Inversion With Genetic Algorithms

https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-246X.1994.tb03310.x

Genetic Algorithm Encodings

https://www.cse.unr.edu/~sushil/thesis/thesishtml/node4.html

Genetic Algorithms - Quick Guide

https://www.tutorialspoint.com/genetic_algorithms/genetic_algorithms_quick_guide.htm

Papers 

Novel Encoding Scheme in Genetic Algorithms for Better Fitness

Optimizing requirement analysis by the use of meta-heuristic in Search Based Software Engineering

Automatic Change of Representation in Genetic Algorithms

Search : "principle of meaningful building blocks"