@misc{misc40b20346,
title   = {Predicting impending ovulation in mares: preliminary results from a field study using B-mode ultrasonography},
author = {Gastal, Eduardo Leite and Silva, Luciano Andrade and Rocha Filho, A. N and Chiquetto, D and Reis, C. P and Gastal, M. O},
year = {2010},
doi = {10.1016/j.anireprosci.2010.04.049},
booktitle   = {International Symposium on Equine Reproduction}
}