R.

发表

Alan, R., Drengson, 2014 .

G. Shah, Mitchell, R., 2005 .

Tristan, C. Bollen, S. Gray, 2020 .

Lauren, A., M., 2018 .

D., Hanson, Blum, 2004 .

J. Daly, R. Hoffenberg, R. W. Russell, 1990, Journal of the Royal College of Physicians of London.

R., Williamson, Wilson, 1957, Proceedings of the Edinburgh Mathematical Society.

Taylor, R., J., 1924, The Classical Review.

R., J., Folliot, 2019 .

Balwant, Hutson, Thomas, 2002 .