|
28
|
Nikolas Dergiades and Sung Hyun Lim, The butterfly theorem revisisted, 301—304.
|
|
27
|
Paris Pamfilos, On tripolars and parabolas, 287—300.
|
|
26
|
Wladimir
Boskoff, Lucy H. Odom, and Bogdan
Suceava, An elementary view on Gromov hyperbolic spaces, 283—286.
|
|
25
|
Manfred Evers,
Generalizing orthocorrespondence, 255—281.
|
|
|
|
24
|
Harold Reiter and
Arthur Holshouser, Using complex weighted centroids to create homothetic polygons, 247—254.
|
|
23
|
Maria Flavia Mammana, The maltitude construction in a convex noncyclic
quadrilateral, 243—245.
|
|
|
|
22
|
Martin Josefsson, Maximal area of a bicentric
quadrilateral, 237—241.
|
|
|
|
21
|
Toufik
Mansour and Mark Shattuck, Improving upon a
geometric inequality of third order, 227—235.
|
|
20
|
Paul Yiu, Sherman's
fourth side of a triangle, 219—225.
|
|
19
|
Floor van Lamoen, The
spheres tangent externally to the tritangent spheres of a triangle,
215—218.
|
|
18
|
John Goehl, Finding
integer-sided triangles with P^2 = nA, 211—213.
|
|
17
|
Dragutin Svrtan and
Darko Veljan, Non-Euclidean versions of some classical triangle inequalities,
197—209.
|
|
16
|
Debdyuti Banerjee and
Nikolaos Dergiades, Alhazen's circular billiard problem, 193—196.
|
|
15
|
Albrecht Hess, A
highway from Heron to Brahmagupta, 191—192.
|
|
14
|
Olga Radko and Emmanuel
Tsukerman, The perpendicular bisector construction, isoptic point and Simson
line, 161—189.
|
|
13
|
Nikolaos Dergiades,
Harmonic conjugate circles relative to a triangle, 153—159.
|
|
12
|
Calalin Barbu and Ion
Patrascu, Some properties of the Newton-Gauss line, 149—152.
|
|
11
|
Luis Gonzalez and
Cosmin Pohoata, On the intersections of the incircle and the cevian circumcircle
of the incenter, 141—148.
|
|
10
|
Alberto Mendoza, Three
conics derived from perpendicular lines, 131—139.
|
|
9
|
Grigoire Nicollier,
Reflection triangles and their iterates, 83—128; correction, 129.
|
|
8
|
Martin Josefsson, A new proof of Yun's
inequality for bicentric quadrilaterals,
79—82.
|
|
7
|
Martin Josefsson, Similar metric characterizations of tangential
and extangential quadrilaterals, 63—77.
|
|
|
|
6
|
Maria Flavia Mammana, Biagio Micale, and Mario Pennisi, Properties of valtitudes
and vaxes of a convex quadrilateral, 47—61.
|
|
5
|
Nguyen Ming Ha and
Nguyen Pham Dat, Synthetic proofs of two theorems
related to the Feuerbach point, 39—46.
|
|
4
|
Larry Hoehn, The
isosceles trapezoid and its dissecting similar triangles, 29--38.
|
|
3
|
John F. Goehl, Jr., More integer triangles with R/r = N, 27--28.
|
|
2
|
Martin Josefsson, Characterizations of orthodiagonal
quadrilaterals, 13--25.
|
|
1
|
Gotthard Weise,
Generalization and extension of the Wallace theorem, 1--11.
|