@misc{indiciae418c4b942e29, title = {Working backward and working forward in problem solving.}, author = {W S Anthony}, year = {1966}, doi = {10.1111/j.2044-8295.1966.tb01003.x}, url = {https://pubmed.ncbi.nlm.nih.gov/5938974/}, note = {Source identifier: 5938974} }