Linking numbers and boundaries of varieties. Alexander, H.; Wermer, John — 2000 Annals of Mathematics. Second Series
Explicit imbedding of the (punctured) disc into C2. H. Alexander — 1977 Commentarii mathematici Helvetici
Areas of Projections of Analytic Sets. H. Alexander; B.A. Taylor; J. Ullmann — 1972 Inventiones mathematicae