Peter McCauley. Proofs Without Using Limits of Both Calculus Power Rules. The American Mathematical Monthly, 123(6):604, 2016. [doi]
@article{McCauley16-0,
title = {Proofs Without Using Limits of Both Calculus Power Rules},
author = {Peter McCauley},
year = {2016},
url = {https://www.tandfonline.com/doi/abs/10.4169/amer.math.monthly.123.6.604},
researchr = {https://researchr.org/publication/McCauley16-0},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {123},
number = {6},
pages = {604},
}