diff --git a/joss.06962/paper.jats/penalised-spline-basis-and-penalty-1.pdf b/joss.06962/paper.jats/penalised-spline-basis-and-penalty-1.pdf new file mode 100644 index 000000000..957bc13dd Binary files /dev/null and b/joss.06962/paper.jats/penalised-spline-basis-and-penalty-1.pdf differ