![Characterization of coal-based fulvic acid and the construction of a fulvic acid molecular model - RSC Advances (RSC Publishing) DOI:10.1039/C9RA09907G Characterization of coal-based fulvic acid and the construction of a fulvic acid molecular model - RSC Advances (RSC Publishing) DOI:10.1039/C9RA09907G](https://pubs.rsc.org/image/article/2020/RA/c9ra09907g/c9ra09907g-f5_hi-res.gif)
Characterization of coal-based fulvic acid and the construction of a fulvic acid molecular model - RSC Advances (RSC Publishing) DOI:10.1039/C9RA09907G
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PDF) Characterization of coal-based fulvic acid and the construction of a fulvic acid molecular model
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