Professor Luca is surely fond of this kind of titles:

A. Luca, Florian; de Weger, Benne. $\sigma_k(F_m)=F_n$. New Zealand J. Math. 40 (2010), 1–13.

B. Luca, Florian; Nicolae, Florin. $\phi(F_n)=F_m$. Integers 9 (2009), A30, 375–400.

C. Luca, Florian; Mignotte, Maurice $\phi(F_{11})=88$. Divulg. Mat. 14 (2006), no. 2, 101–106.

D. Luca, Florian; Stănică, Pantelimon. $F_1F_2F_3F_4F_5F_6F_8F_{10}F_{12}=11!$. Port. Math. (N.S.) 63 (2006), no. 3, 251–260.

Professor Luca and his co-authors are surely fond of this kind of titles:

• F. Luca & B. de Weger, $\sigma_k(F_m)=F_n$. New Zealand J. Math. 40 (2010), 1–13.

• F. Luca & F. Nicolae, $\phi(F_n)=F_m$. Integers 9 (2009), A30, 375–400.

• F. Luca & M. Mignotte, $\phi(F_{11})=88$. Divulg. Mat. 14 (2006), no. 2, 101–106.

• F. Luca & P. Stănică, $F_1F_2F_3F_4F_5F_6F_8F_{10}F_{12}=11!$. Port. Math. (N.S.) 63 (2006), no. 3, 251–260.

Professor Luca is surely fond of this sort of titles:

A. Luca, Florian; de Weger, Benne. $\sigma_k(F_m)=F_n$. New Zealand J. Math. 40 (2010), 1–13.

B. Luca, Florian; Nicolae, Florin. $\phi(F_n)=F_m$. Integers 9 (2009), A30, 375–400.

C. Luca, Florian; Mignotte, Maurice $\phi(F_{11})=88$. Divulg. Mat. 14 (2006), no. 2, 101–106.

D. Luca, Florian; Stănică, Pantelimon. $F_1F_2F_3F_4F_5F_6F_8F_{10}F_{12}=11!$. Port. Math. (N.S.) 63 (2006), no. 3, 251–260.

Professor Luca is surely fond of this kind of titles:

A. Luca, Florian; de Weger, Benne. $\sigma_k(F_m)=F_n$. New Zealand J. Math. 40 (2010), 1–13.

B. Luca, Florian; Nicolae, Florin. $\phi(F_n)=F_m$. Integers 9 (2009), A30, 375–400.

C. Luca, Florian; Mignotte, Maurice $\phi(F_{11})=88$. Divulg. Mat. 14 (2006), no. 2, 101–106.

D. Luca, Florian; Stănică, Pantelimon. $F_1F_2F_3F_4F_5F_6F_8F_{10}F_{12}=11!$. Port. Math. (N.S.) 63 (2006), no. 3, 251–260.