@book{Aike1991,
  address = {Newbury Park},
  author = {Aiken, L. S. and West, S. G.},
  interhash = {432705e207786d96045e4dffdd8bbbde},
  intrahash = {6f37574cccd304f8e50a0f731532709f},
  publisher = {Sage},
  title = {{M}ultiple regression: {T}esting and interpreting interactions.},
  year = 1991
}