Ищу статью:
Journal of Colloid and Interface Science
Volume 284, Issue 2, 15 April 2005, Pages 463-469
Size and shape of soil humic acids estimated by viscosity and molecular weight
Masayuki Kawahigashi, Hiroaki Sumida, Kazuhiko Yamamoto
- DOI:
http://dx.doi.org/10.1016/j.jcis.2004.10.023