@misc{indiciae3d01766b3473, title = {Alpha biofeedback: fact or artifact?}, author = {W Leib and W W Tryon and C S Stroebel}, year = {1976}, doi = {10.1111/j.1469-8986.1976.tb00878.x}, url = {https://pubmed.ncbi.nlm.nih.gov/996221/}, note = {Source identifier: 996221} }