@article{aoki_watanabe_sakagami_2001, 
  title={Modification of Decomposing Coefficient in Humus Accumulation Model Applied to Tephra-soil Sequence in Japan.}, 
  volume={40}, 
  DOI={10.4116/jaqua.40.319}, 
  publisher={Japan Association for Quaternary Research}, 
  author={Aoki and Watanabe and Sakagami}, 
  year={2001}
  }