Ralph-Johan Back. Structured derivations: a unified proof style for teaching mathematics. Formal Asp. Comput., 22(5):629-661, 2010. [doi]
@article{Back10, title = {Structured derivations: a unified proof style for teaching mathematics}, author = {Ralph-Johan Back}, year = {2010}, doi = {10.1007/s00165-009-0136-5}, url = {http://dx.doi.org/10.1007/s00165-009-0136-5}, tags = {teaching}, researchr = {https://researchr.org/publication/Back10}, cites = {0}, citedby = {0}, journal = {Formal Asp. Comput.}, volume = {22}, number = {5}, pages = {629-661}, }