Dietrich Trenkler, Götz Trenkler, Patrick Corn. The Square Root of a Certain Matrix: 11224. The American Mathematical Monthly, 115(5):466-467, 2008. [doi]
@article{TrenklerTC08,
title = {The Square Root of a Certain Matrix: 11224},
author = {Dietrich Trenkler and Götz Trenkler and Patrick Corn},
year = {2008},
url = {http://www.jstor.org/stable/27642520},
researchr = {https://researchr.org/publication/TrenklerTC08},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {115},
number = {5},
pages = {466-467},
}