<nowiki>Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; G. Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; G. Ch. Aalders; G. Ch. Aalders; 게하르트 찰스 알더스; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; Gerhard Charles Aalders; جيرهارد تشارلز الدرس; professore universitario neerlandese; professeur d'université néerlandais; استاذ جامعة من مملكه نيديرلاند; unibertsitateko irakasle nederlandarra; Nederlands hoogleraar (1880-1961); professor d'universitat neerlandès; profesor universitariu neerlandés; professor universitário neerlandês; Dutch university professor (1880-1961); أستاذ جامعي هولندي; profesor universitario neerlandés; profesor universitario neerlandés; Gerhard Charles Aalders; G.Ch. Aalders; G.C. Aalders; G.Ch. Aalders; G.C. Aalders; G.Ch. Aalders; G.C. Aalders; G.Ch. Aalders; G.C. Aalders; G. Ch. Aalders; G.Ch. Aalders; Gerhard Charles Aalders; G.Ch. Aalders; G.C. Aalders; G.Ch. Aalders; G.C. Aalders</nowiki>