Hanson et al. (2003)

[brycefrank]

@article{hanson2003site,
  title={Site index equations and mean annual increment equations for Pacific Northwest Research Station forest inventory and analysis inventories, 1985-2001.},
  author={Hanson, Erica J and Azuma, David L and Hiserote, Bruce A},
  journal={Res. Note PNW-RN-533. Portland, OR: US Department of Agriculture, Forest Service, Pacific Northwest Research Station. 24 p},
  volume={533},
  year={2003}
}

There is probably substantial overlap with this and any FVS oriented publications.