@misc{indiciaec9cb904a843a,
  title = {Structural equation modeling and the analysis of long-term monitoring data},
  author = {James B. Grace and Jon E. Keeley and Darren J. Johnson and Kenneth A. Bollen},
  year = {2012},
  url = {https://pubs.usgs.gov/publication/70157249},
  note = {Source identifier: 70157249}
}