@article{MM2_1993__81_3-4_155891,
     author = {Robert D.M. Accola},
     title = {Some loci in {Teichm\"uller} space for genus seven defined by vanishing thetanulls.},
     journal = {Manuscripta mathematica},
     pages = {113--128},
     publisher = {mathdoc},
     volume = {81},
     number = {3-4},
     year = {1993},
     zbl = {0815.14019},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__81_3-4_155891/}
}