%0 Journal Article %T The Importance of Internal and External Knowledge Sourcing and Firm Performance: A Latent Class Estimation %A Devinney, Timothy M. %A Soo, Christine W. %A Pedersen, Torben %A , %J SSRN Electronic Journal %@ 1556-5068 %D 2003-01-01 %I Elsevier BV %~ DeepDyve