**Publications and preprints:**

- Spaces with asymptotically Euclidean Dehn function, preprint arXiv 2017.
- Area minimizing discs in locally non-compact metric spaces, (with C. Guo), Comm. Anal. Geom., to appear, preprint arXiv 2017.
- Canonical parametrizations of metric discs, (with A. Lytchak), preprint arXiv 2017.
- Isoperimetric characterization of upper curvature bounds, (with A. Lytchak), preprint arXiv 2016.
- Dehn functions and Hölder extensions in asymptotic cones, (with A. Lytchak and R. Young), preprint arXiv 2016.
- Intrinsic structure of minimal discs in metric spaces, (with A. Lytchak), Geom. Topol. 22 (2018), no. 1, 591 - 644.
- Energy and area minimizers in metric spaces, (with A. Lytchak), Adv. Calc. Var. 10 (2017), no. 4, 407 - 421.
- Area minimizing discs in metric spaces, (with A. Lytchak), Arch. Rational. Mech. Anal. 223 (2017), no. 3, 1123 - 1182.
- Regularity of harmonic discs in spaces with quadratic isoperimetric inequality, (with A. Lytchak), Calc. Var. Partial Differential Equations 55 (2016), no. 4, Paper No. 98, 19 pp..
- Wolfe's theorem for weakly differentiable cochains, (with C. Petit and K. Rajala), J. Funct. Anal. 268 (2015), no. 8, 2261 - 2297.
- Isoperimetric inequalities and asymptotic geometry, Proceedings of the ICM Seoul 2014, Vol. II, 1049 - 1073.
- Lipschitz homotopy groups of the Heisenberg groups, (with R. Young), Geom. Funct. Anal. 24 (2014), no. 1, 387 - 402.
- Plateau's problem for integral currents in locally non-compact metric spaces, Adv. Calc. Var. 7 (2014), no. 2, 227 - 240.
- An upper gradient approach to weakly differentiable cochains, (with K. Rajala), J. Math. Pures Appl., 100 (2013), no. 6, 868 - 906.
- The pointed flat compactness theorem for locally integral currents, (with U. Lang), Comm. Anal. Geom. 19 (2011), no. 1, 159 - 190.
- Nilpotent groups without exactly polynomial Dehn function, J. Topology 4 (2011), 141 - 160.
- The Intrinsic Flat Distance between Riemannian Manifolds and other Integral Current Spaces, (with C. Sormani), J. Differential Geom. 87 (2011), no. 1, 117 - 199.
- Rectifiability of flat chains in Banach spaces with coefficients in Z_p, (with L. Ambrosio), Math. Zeitschrift 268 (2011), no. 1 - 2, 477 - 506.
- The asymptotic rank of metric spaces, Comment. Math. Helv. 86 (2011), no 2, 247 - 275.
- Compactness for manifolds and integral currents with bounded diameter and volume, Calc. Var. Partial Differential Equations 40 (2011), no. 3-4, 423 - 448.
- Weak convergence of currents and cancellation, (with C. Sormani), Calc. Var. Partial Differential Equations 38 (2010), no. 1-2, 183 - 206.
- Lipschitz extensions into jet space Carnot groups, (with R. Young), Math. Res. Lett. 17 (2010), no. 6, 1137 - 1149.
- Lipschitz non-extension theorems into jet space Carnot groups, (with S. Rigot), Int. Math. Res. Notices (2010), no. 18, 3633 - 3648.
- A short proof of Gromov's filling inequality, Proc. Amer. Math. Soc. 136 (2008), no. 8, 2937 - 2941.
- Characterizations of metric trees and Gromov hyperbolic spaces, Math. Res. Lett. 15 (2008), no. 5, 1017 - 1026.
- Gromov hyperbolic spaces and the sharp isoperimetric constant, Invent. Math. 171 (2008), no. 1, 227 - 255.
- Isoperimetric inequalities and the asymptotic geometry of Hadamard spaces, (with U. Lang), L'Enseignement Mathematique (2) 54 (2008), fasc. 1 - 2.
- Flat convergence for metric integral currents, Calc. Var. Partial Differential Equations 28 (2007), no. 2, 139 - 160.
- Filling invariants at infinity and the Euclidean rank of Hadamard spaces, Int. Math. Res. Not., Volume 2006 (2006), Article ID 83090, 33 pages.
- Isoperimetric inequalities of Euclidean type in metric spaces, Geom. Funct. Anal. 15 (2005), no. 2, 534 - 554.
- Isoperimetric inequalities of Euclidean type and applicatins, PhD thesis, ETH Zurich (2004).

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