6
by Holmes, F. F.
Published 1983
Springer Berlin Heidelberg

7
by F. F. B. L
Published 1796

8
by Benzie, Iris F. F.
Published 2011
Taylor & Francis

16
by Boavida, Nuno F. F. G.
Published 2017
KIT Scientific Publishing

17
by Bonsall, F. F., Duncan, J.
Published 1973
Cambridge University Press

18
by Bonsall, F. F., Duncan, J.
Published 1971
Cambridge University Press

19
by Knapp, F. F. (Russ), Dash, Ashutosh
Published 2016
Springer India