@inproceedings{RaikoValpola01,
address = {Shanghai},
author = {Tapani Raiko and Harri Valpola},
booktitle = {Proc.\ of the 8th Int.\ Conf.\ on Neural Information Processing (ICONIP'01)},
pages = {822--827},
title = {Missing values in nonlinear factor analysis},
year = {2001},
}