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2002
A Sum Related to Quadratic Residues: 10852.
[DOI]
Calin Popescu
,
Roy Barbara
,
Omran Kouba
Am. Math. Mon., 2002
When ABC Is Equilateral: 10838.
[DOI]
Florian S. Pârvânescu
,
Roy Barbara
Am. Math. Mon., 2002
2000
Quadrilaterals in an Isosceles Triangle: 10653.
[DOI]
Marcin Mazur
,
Roy Barbara
,
Jean Anglesio
,
Robin J. Chapman
,
N. Lakshmanan
,
John Melville
,
G. Peng
,
C. R. Pranesachar
Am. Math. Mon., 2000