Polar backpropagation [artificial neural networks]. - Keith R. L. Godfrey; Yiannis Attikiouzel (IJCNN, 1990)

Self-organized color image quantization for color image data compression. - Keith R. L. Godfrey; Yiannis Attikiouzel (ICNN, 1993)

Digital Color Quantization Patterns in CIE Spaces and Artifacts from Misaligned Color Planes. - Keith R. L. Godfrey (CIC, 1998)