APA (7th ed.) Citation

Howison, S., Morgan, J., & Ockendon, J. (1997). A class of codimension-two free boundary problems.

Chicago Style (17th ed.) Citation

Howison, S., J. Morgan, and J. Ockendon. A Class of Codimension-two Free Boundary Problems. 1997.

MLA (9th ed.) Citation

Howison, S., et al. A Class of Codimension-two Free Boundary Problems. 1997.