Howison, S., Morgan, J., & Ockendon, J. (1997). A class of codimension-two free boundary problems.
Lua i Stíl Chicago (17ú heag.)Howison, S., J. Morgan, agus J. Ockendon. A Class of Codimension-two Free Boundary Problems. 1997.
Lua MLA (9ú heag.)Howison, S., et al. A Class of Codimension-two Free Boundary Problems. 1997.
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