@article{JEMS_2014_16_8_a4,
     author = {Erhard Aichinger and Peter Mayr and Ralph McKenzie},
     title = {On the number of finite algebraic structures},
     journal = {Journal of the European Mathematical Society},
     pages = {1673--1686},
     publisher = {mathdoc},
     volume = {16},
     number = {8},
     year = {2014},
     doi = {10.4171/jems/472},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/472/}
}