**van**** Kempen, Huub **

**On some theorems of Poncelet
and Carnot, 6 (2006) 229--234. **

**Kimberling, Clark **

**Multiplying and dividing curves by
points, 1 (2001) 99--105. Conics
associated with a cevian nest, 1 (2001) 141--150.
Cubics
associated with triangles of equal areas, 1 (2001) 161--171. Collineation,
conjugacies, and cubics, 2
(2002) 21--32. Bicentric pairs of points and related triangle centers, 3
(2003) 35--47. Translated
triangle perspective to a reference triangle, 6 (2006) 269--284. Ceva collineations, 7 (2007) 67--72. Fixed points and fixed lines of Ceva collineations, 7 (2007)
159--168. Second-degree involutory symbolic substitutions, 8 (2008) 175--182. Mappings associated with vertex
triangles, 9 (2009) 27--39. Trilinear
distance inequalities for the symmedian point, the
centroid, and other triangle centers, 10 (2010) 135--139. (with P. J. C. Moses) Perspective isoconjugate
triangle pairs, Hofstadter pairs, and crosssums on
the nine-point circle, 11 (2011) 83--93. **

**Kiss, Sándor
N **

**The orthic-of-intouch and intouch-of-orthic triangles, 6 (2006) 171--177. (with P. Yiu) The
touchpoints triangles and the Feuerbach hyperbolas, 14 (2014) 63--86.
(with Z. Kovacs) Isogonal conjugacy through a fixed
point theorem, 16 (2016) 171--178.
A distance property of the
Feuerbach point and its extension, 16 (2016) 283--290.
Distances among the Feuerbach
points, 16 (2016) 373--379.
(with P. Yiu) On the Tucker circles, 17 (2017)
157--175.
On the cyclic quadrilaterals with
the same Varignon parallelogram, 18 (2018)
103--113.**

**Klemm****, John D. **

**(with E. A.
Weinstein) An improved inequality
for the perimeter of a quadrilateral, 17 (2017) 97--100.**

**Kobayashi, Kenta **

**A recursive formula for the
circumradius of the $n$-simplex, 16 (2016) 179--184. **

**Konig****, Joachim **

**(with D. Nedrenco) Septic
equations are solvable by 2-fold origami, 16 (2016) 193--205.**

**Koroglu****, Zeyd Yusuf **

**(with M. E.
Akengin and Y. Yargic) Three natural homoteties
of the nine-point circle, 13 (2013) 209--218.**

**Kovac****, Vjekoslav **

**(with H.
Abraham) From electrostatic
potentials to yet another triangle center, 15 (2015) 73--89.**

**Kovacs, Zoltan **

**(with S. N.
Kiss) Isogonal conjugacy through a
fixed point theorem, 16 (2016) 171--178.**

**Krasopoulos****, Panagiotis
T. **

**Kronecker
theorem and a sequence of triangles, 8 (2008) 27--37. **

**Krishna, Dasari
Naga Vijay **

**On the Feuerbach triangle, 17
(2017) 289--300. **

**Kung, Sidney **

**(with J.
Tong) A simple construction of the
golden ratio, 7 (2007) 31--32. **

**Kuzmina, Anna S. **

**An improvement of Birsan's
inequalities for the sides of a triangle, 16 (2016) 81--84. **