Semiempirical UHF (CNDO and INDO)
http://pdf.lookchem.com/pdf/22/92a07ac7-f165-4700-b9e2-5ee14440d4a8.pdf
http://pdf.lookchem.com/pdf/22/92a07ac7-f165-4700-b9e2-5ee14440d4a8.pdf