21. Sava Grozdev, Veselin Nenkov, Tatiana Madjarova. Radical Axes and Complex Numbers, pp. 113-121..pdf
20. Benjamin Warren. The Power Center of Three Circles in a Cyclic Quadrilateral is the Diagonal Intersection Point, pp. 108-112..pdf
19. Benjamin Warren. The Miquel Point Lies on a Certain Line in a Quadrilateral, pp. 105-107..pdf
18. Benjamin Warren. A Certain Point Associated to a Cyclic Hexagon, pp. 103-104..pdf
17.Benjamin Warren. Some Properties Regarding a Certain Circle Associated to a Cyclic Quadrilateral, pp. 98-102..pdf
16.Benjamin Warren. A New Set of Collinear Points in a Quadrilateral, pp. 94-97..pdf
15.Benjamin Warren. Another Point that Lies on the Newton Line, pp. 91-93..pdf
14.Benjamin Warren. Generalization of a Triangle Type Criterion, pp. 85-90..pdf
13.Benjamin Warren. A Certain Set of Concyclic Points, pp. 78-84..pdf
12. Stanley Rabinowitz. Proof of the Isogonal Disc Conjecture, pp. 75-77..pdf