1. A cephalometric appraisal of the results of orthodontic treatment on one hundred fifty successfully corrected difficult Class II malocclusions;Gramling;J Charles Tweed Found,1987
2. A cephalometric appraisal of the results of orthodontic treatment on fifty-five unsuccessfully corrected difficult Class II malocclusions;Gramling;J Charles Tweed Found,1987
3. The probability index;Gramling;J Charles Tweed Found,1989
4. Analysis: concepts and values, part I;Gebeck;J Charles Tweed Found,1989
5. Analysis: concepts and values, part II;Merrifield;J Charles Tweed Found,1989