I am trying to locate a copy of the paperpaper by Alberto Collino titled "Griffiths’ infinitesimal invariant and higher K-theory on hyperelliptic Jacobians".
I can neither download nor purchase it online. It was originally published in Journal of Algebraic Geometry, vol. 6, 1997.
It appears to be widely cited, but unfortunately the author has passed away, and I can't request a copy from him.