Towards Structured State Threading

Does anyone know a non-paywalled source for the paper

IVANOVIC, D., MORALES CABALLERO, J. F., CARRO, M., AND HERMENEGILDO, M. 2009.
Towards structured state threading in Prolog.
In CICLOPS 2009.

Thanks!

Hi Pierpaolo, the pdf should have been available from the publications list in https://cliplab.org/, but it was missing: thanks for pointing this out. Added now. Btw, this paper was a bit of an experiment; there have been other proposals and progress since, including in Ciao Prolog.

Thank you!