1. Surface area. I;Federer, Herbert;Trans. Amer. Math. Soc.,1944
2. Further contributions to the problem of Geöcze;Huskey, Harry D.;Duke Math. J.,1944
3. Sul problema di Geöcze;Mambriani, Antonio;Ann. Scuola Norm. Super. Pisa Cl. Sci. (2),1944
4. On the total variation of a function of two variables;Mulholland, H. P.;Proc. London Math. Soc. (2),1940
5. \bysame, Solution of Geöcze’s problem for a continuous surface 𝑧=𝑓(𝑥,𝑦), to be published in Proc. London Math. Soc.