File:Opposite-circles-dilatating2.gif - Wikipedia

File:80-gon rhombic dissection2.svg - Wikipedia

File:3-circles hypotrochoid.gif - Wikipedia

Graphics Interchange Format — Wikipédia

Graphics Interchange Format - Wikipedia, la enciclopedia libre

Morphology - Dilation

File:Opposite-circles-mul-by-k.gif - Wikipedia

File:102-gon rhombic dissection2.svg - Wikimedia Commons

The Image Interpolation Page

CLE4.5withexplorationtree.bmp

File:Trasformazione ciclica coniche non omotetiche.gif - Wikimedia Commons

File:Opposite-circles-mul-by-k.gif - Wikipedia

GIF - Wikidata

GIF - Wikipedia

GIF - Wikipedia

Alexis Cornwell - BA (Hons) Computer Animation Arts, UCA Rochester: Toolkit: Animation and Character - Timing and Spacing