r50	tangential triangle, intangential triangle, extangential triangle, homothetic triangles
r51	Gob point, Clawson point, point X(33)
r149	circumcircle, incircle, tangent circles, perspective
r193	Schröder point, Weill point,Bevan-Schröder point, Bevan point, poristic triangles, point X(65), point X(56)
d	Schröder point
r457	tangent circles
r546	intouch triangle, homothetic triangles
r561	intouch triangle, incircle, cevian triangle, Weill point
r734	antiorthic axis, circumcircle
r867	intouch triangle, orthic triangle, incircle, homothetic triangles
r890	tripolar, isogonal points, circumcircle, incircle, cevian quotient, Mittenpunkt
r1138	circumcircle, incircle, circumcevian triangle, point X(57)
r1156	point X(56), inconic, perspector, Feuerbach point, isogonal points
r1176	homothetic triangles, tangent circles
r1594	incenter, point X(57), point X(165)
r1655	excircles, incircle, isotomic points, angent circles
r1690	symmedian point, Feuerbach point, point X(37), concyclic points
r1921	cevian triangle