Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld057.htm
Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld058.htm
Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld060.htm
Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld061.htm
Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld063.htm
Source: http://www2.ncsu.edu/unity/lockers/project/mediasource/COTT_CIT/sld067.htm