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

** Nelsen, Roger B.
**
**(with C. Alsina) A visual proof of the Erdos-Mordell inequality, 7 (2007) 99--102. **

**(with C. Alsina) On the diagonals of a cyclic quadrilateral, 7 (2007) 147--149. **

**
**** Ngo, Quang Duong
**
**(with T. T. Vu)A generalization of Droz-Farny's line theorem with orthologic triangles, 16 (2016) 415--418. **

**A generalization of the Simson line theorem, 17 (2017) 157--175. **

**
**** Nguyen, Khoa Lu
**
**A synthetic proof of Goormaghtigh's generalization of Musselman's theorem, 5 (2005) 17--20. **

**On the complement of the Schiffler point, 5 (2005) 149--164. **

** (with J. C. Salazar) On the mixtilinear incircles and excircles, 6 (2006) 1--16. **

**A note on the barycentric square root of Kiepert perspectors, 6 (2006) 263--268. **

**
**** Nguyen, Minh Ha
**
** (with N. Dergiades) Garfunkel's inequality, 4 (2004) 153--156. **

** Another proof of Fagnano's inequality, 4 (2004) 199--201. **

**Another proof of van Lamoen's theorem and its converse, 5 (2005) 127--132. **

** (with V. L. Bui) More on the extension of Fermat's problem, 11 (2011) 131--138. **

** (with P. D. Nguyen) Synthetic proofs of two theorems related to the Feuerbach point, 12 (2012) 39--46. **

**
**** Nguyen, Pham Dat
**
** (with M. H. Nguyen) Synthetic proofs of two theorems related to the Feuerbach point, 12 (2012) 39--46. **

** Nguyen, Thanh Dung
**
** Some circles associated with the Feuerbach points, 14 (2014) 403--408.**

** The Feuerbach point and the Fuhrmann triangle, 16 (2016) 299--311.**

**
**** Nguyen, Tien Dung
**
** (with T. O. Dao and N. M. Pham) A strengthened version of the Erdos-Mordell inequality, 16 (2016) 317--321.**

**Another purely synthetic proof of Lemoine's theorem, 17 (2017) 119--121.**

**Three synthetic proofs of the Butterfuly Theorem, 17 (2017) 355--358.**

**
**** Nguyen, Van Linh
**
** Another synthetic proof of Dao's generalization of the Simson line theorem, 16 (2016) 57--61.**

**
**** Nicollier, Grégoire
**
**Reflection triangles and their iterates, 12 (2012) 83--128; correction, 129. **

**Convolution filters for triangles, 13 (2013) 61--85.**

**Dynamics of the nested triangles formed by the tops of the perpendicular bisectors, 14 (2014) 31--41.**

**A simple dynamic localization of the gravitational center of a triangle, 15 (2015) 263--265.**

**Some theorems on polygons with one-line spectral proofs, 15 (2015) 267--273.**

**Area of the orthic quadrilaterals of a convex cyclic orthodiagonal quadrilateral, 16 (2016) 233--239.**

**Minimal proof of a generalized Droz-Farny theorem, 16 (2016) 397--398.**

**
**** Nielsen, Colleen
**
** (with C. Powers) Intersecting equilateral triangles, 13 (2013) 219--225.**

**
**** Niemeyer, Jo
**
**A simple construction of the golden section, 11 (2011) 53. **

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