Hadley1992
From Kolesnikov.org
Hadley1992: John Hadley and David Singmaster. Problems to Sharpen the Young // The Mathematical Gazette. — 1992, Mar. — Vol. 76, No. 475, The Use of the History of Mathematics in the Teaching of Mathematics. — P. 102-126. http://www.jstor.org/stable/3620384
Kolesnikov2023p243
