@article{BSL_2016_45_2_a0,
     author = {Robles, Gemma and L\'opez, Sandra M. and Blanco, Jos\'e M. and Recio, Marcos M. and Paradela, Jes\'us R.},
     title = {A 2-set-up {Routley-Meyer} {Semantics} for the 4-valued {Relevant} {Logic} {E4}},
     journal = {Bulletin of the Section of Logic},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BSL_2016_45_2_a0/}
}