Jean H. Gallier, Ronald V. Book. Reductions in Tree Replacement Systems. Theoretical Computer Science, 37:123-150, 1985.
@article{GallierB85, title = {Reductions in Tree Replacement Systems}, author = {Jean H. Gallier and Ronald V. Book}, year = {1985}, researchr = {https://researchr.org/publication/GallierB85}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {37}, pages = {123-150}, }