Willemin, J.H., 2000, "Hack’s law: Sinuosity, convexity, elongation". Water Resources Research, 36, 11, pp. 3365–3374. [3]Archiválva2012. december 31-i dátummal a Wayback Machine-ben
Rigon, R., et al., 1996, "On Hack's law" Water Resources Research, 32, 11, pp. 3367–3374. [4]Archiválva2012. december 30-i dátummal a Wayback Machine-ben
Hack J.T., 1957, "Studies of longitudinal stream profiles in Virginia and Maryland", U.S. Geological Survey Professional Paper, 294-B.
[1][halott link]
web.archive.org
Hack J.T., 1957, "Studies of longitudinal stream profiles in Virginia and Maryland", U.S. Geological Survey Professional Paper, 294-B.
[1][halott link]
Willemin, J.H., 2000, "Hack’s law: Sinuosity, convexity, elongation". Water Resources Research, 36, 11, pp. 3365–3374. [3]Archiválva2012. december 31-i dátummal a Wayback Machine-ben
Rigon, R., et al., 1996, "On Hack's law" Water Resources Research, 32, 11, pp. 3367–3374. [4]Archiválva2012. december 30-i dátummal a Wayback Machine-ben