1
Published: 1997
Superior document: Preprint series / Department of Mathematics, Toyama University 81
2
Published: 2000
Superior document: Preprint series / Department of Mathematics, Toyama University No. 88
3
Published: 1998
Superior document: Preprint series / Department of Mathematics, Toyama University 84
4
Published: 2000
Superior document: Preprint series / Department of Mathematics, Toyama University No. 90