1. Ilya I. Bogdanov, Two theorems on the focus-sharing ellipses: a three-dimensional view
2. Alexey A. Pakharev, On certain transformations preserving perspectivity of triangles
3. Lev A. Emelyanov and Pavel A. Kozhevnikov, Isotomic similarity
4. Arseniy V. Akopyan, Conjugation of lines with respect to a triangle
5. Nguyen Minh Ha, A proof of Vittas’ Theorem and its converse
6. Darij Grinberg, Ehrmann’s third Lemoine circle
7. Nikolai Ivanov Beluhov, An elementary proof of Lester’s theorem
8. Dmitry S. Babichev, Circles touching sides and the circumcircle for inscribed quadrilaterals
9. Vladimir N. Dubrovsky, Two applications of a lemma on intersecting circles
10. Alexey A. Zaslavsky, Geometry of Kiepert and Grinberg–Myakishev hyperbolas
11. Problem section, pp. 72—74. pdf
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