1. Agol, I., Marques, F.C., Neves, A.: Min–max theory and the energy of links. J. Am. Math. Soc. 29(2), 561–578 (2016)
2. Almgren Jr., F.J.: The Theory of Varifolds, Mimeographed Notes. Princeton University, Princeton (1965)
3. Almgren Jr., F.J.: Existence and regularity almost everywhere of solutions to elliptic variational problems with constraints. Mem. Am. Math. Soc. 4(165), viii+199 (1976)
4. Arnold, V.I.: Arnold’s problems. Springer-Verlag, Berlin; PHASIS, Moscow. Translated and revised edition of the 2000 Russian original. Philippov, A. Yakivchik and M. Peters, With a preface by V (2004)
5. Almgren, J., Justin, F.: The homotopy groups of the integral cycle groups. Topology 1, 257–299 (1962)