1. Periodontics on the verge of a new era;McGuire;Tex Dent J,1988
2. Free transplantation of gingiva propria;Bjorn;Sver Tandlakforb Tidn,1963
3. Free autogenous gingival grafts. III. Utilization of grafts in the treatment of gingival recession;Sullivan;Periodontics,1968
4. Repair of gingival defects by a sliding flap operation;Grupe;J Periodontol,1956
5. Coronally repositioned periodontal flap. Clinical evaluation after one year;Bernimoulin;J Clin Periodontol,1975