@article{TAC_2019_34_a39,
     author = {Soichiro Fujii},
     title = {A unified framework for notions of algebraic theory},
     journal = {Theory and applications of categories},
     pages = {1246--1316},
     publisher = {mathdoc},
     volume = {34},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2019_34_a39/}
}