Kimberling, Clark (1994), "Central Points and Central Lines in the Plane of a Triangle", Mathematics Magazine, 67 (3), पपृ॰ 163–187, JSTOR2690608, MR1573021, डीओआइ:10.2307/2690608.
doi.org
Kimberling, Clark (1994), "Central Points and Central Lines in the Plane of a Triangle", Mathematics Magazine, 67 (3), पपृ॰ 163–187, JSTOR2690608, MR1573021, डीओआइ:10.2307/2690608.
Kimberling, Clark (1994), "Central Points and Central Lines in the Plane of a Triangle", Mathematics Magazine, 67 (3), पपृ॰ 163–187, JSTOR2690608, MR1573021, डीओआइ:10.2307/2690608.