Central points and central lines in the plane of a triangle
Clark Kimberling
págs. 163-187
pág. 187
The conics of Ludwig Kiepert: A comprehensive lesson in the geometry of the triangle
R.H. Eddy, R. Fritsch
págs. 188-205
Museum exhibits for the conics
Lars Broman, Arne Broman
págs. 206-209
Proof without words: Gabriel's staircase
Stuart G. Swain
pág. 209
Mortality for sets of 2x2 matrices
Mark A. Miller
págs. 210-213
Formal justice and functional equations
Reinhard Illner
págs. 214-219
The birthday problem revisited
M. Sayrafiezadeh
págs. 220-223
Proof without words: Geometric series
Roger B. Nelsen, Sunday A. Ajose
pág. 230
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