@misc{ARM_2023_59_2_a0,
     title = {Foreword to proceedings of {Equadiff} 15},
     journal = {Archivum mathematicum},
     pages = {153--154},
     year = {2023},
     volume = {59},
     number = {2},
     mrnumber = {4563026},
     zbl = {07675584},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2023_59_2_a0/}
}