Cita APA (7a ed.)

Verhoeff, T. (2026). The $k$-out-of-$n$ picture-hanging puzzle: Shorter solutions for small $k$ and $n-k$.

Cita Chicago Style (17a ed.)

Verhoeff, Tom. The $k$-out-of-$n$ Picture-hanging Puzzle: Shorter Solutions for Small $k$ and $n-k$. 2026.

Cita MLA (9a ed.)

Verhoeff, Tom. The $k$-out-of-$n$ Picture-hanging Puzzle: Shorter Solutions for Small $k$ and $n-k$. 2026.