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• [3] Herbert Federer, The (𝜑,𝑘) rectifiable subsets of 𝑛-space, Trans. Amer. Soc. 62 (1947), 114–192. MR 0022594, https://doi.org/10.1090/S0002-9947-1947-0022594-3
• [4] A. P. Morse and John F. Randolph, The 𝜙 rectifiable subsets of the plane, Trans. Amer. Math. Soc. 55 (1944), 236–305. MR 0009975, https://doi.org/10.1090/S0002-9947-1944-0009975-6

Bibliography

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C. Carathéodory, Über das lineare Mass von Punktmengen--eine Verallgemeinerung des Längenbegriffs, Nachr. Ges. Wiss. Göttingen (1914) pp. 404-426.

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S. Eilenberg and O. G. Harrold, Jr., Continua of finite linear measure. I, Amer. J. Math. vol. 65 (1943) pp. 137-146. MR 0007643 (4:172e)

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H. Federer, The rectifiable subsets of space, Trans. Amer. Math. Soc. vol. 62 (1947) pp. 114-192. MR 0022594 (9:231c)

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A. P. Morse and J. F. Randolph, The rectifiable subsets of the plane, Trans. Amer. Math. Soc. vol. 55 (1944) pp. 236-305. MR 0009975 (5:232a)