@article{TAC_2021_36_a5,
     author = {Robert Par\'e},
     title = {Three {Easy} {Pieces:
} {Imaginary} seminar talks in honour
 of {Bob} {Rosebrugh}},
     journal = {Theory and applications of categories},
     pages = {171--200},
     year = {2021},
     volume = {36},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2021_36_a5/}
}