@article{BSL_2023_52_2_a0,
     author = {Restall, Greg},
     title = {Structural {Rules} in {Natural} {Deduction} with {Alternatives}},
     journal = {Bulletin of the Section of Logic},
     pages = {109--143},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BSL_2023_52_2_a0/}
}