diff --git a/doc/paper/2023/simhydro/paper.pdf b/doc/paper/2023/simhydro/paper.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..c3d398298faa0937bab07b593ac5d1594903795e
Binary files /dev/null and b/doc/paper/2023/simhydro/paper.pdf differ