@inbook{TrainorWise+1979+339+358,
url = {https://doi.org/10.3138/9781487575823-013},
title = {12. Horizons},
booktitle = {From Physical Concept to Mathematical Structure},
booktitle = {An Introduction to Theoretical Physics},
author = {Lynn E.H. Trainor and Mark B. Wise},
publisher = {University of Toronto Press},
address = {Toronto},
pages = {339--358},
doi = {doi:10.3138/9781487575823-013},
isbn = {9781487575823},
year = {1979},
lastchecked = {2026-04-30}
}