https://linkinghub.elsevier.com/retrieve/pii/S0012365X18303510
https://linkinghub.elsevier.com/retrieve/pii/S0166218X17300045
https://linkinghub.elsevier.com/retrieve/pii/S0195669817300677
https://www.cambridge.org/core/product/identifier/CBO9781316106853A016/type/book_part