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[[ICT 2008]] round 1, [[Walter Ravenek]] and [[Richard Pijl]] in [[Eowyn]] vs. [[Crashtest Dummy]] <ref>[https://www.csvn.nl/index.php/nieuws/18-vereniging/292-ronde-1 ICT8 Ronde 1], Photo Gallery no longer available</ref>

<ref>[https://www.researchgate.net/scientific-contributions/84254315_Walter_Ravenek Walter Ravenek's research works | Vrije Universiteit Amsterdam, Amsterdam (VU) and other places]</ref>

* [[Walter Ravenek]], [https://en.wikipedia.org/wiki/Evert_Jan_Baerends Evert Jan Baerends] ('''1984'''). ''[https://aip.scitation.org/doi/10.1063/1.447722 The calculation of interaction energies using the pseudopotential Hartree-Fock-Slater-LCAO method]''. [https://en.wikipedia.org/wiki/The_Journal_of_Chemical_Physics The Journal of Chemical Physics], Vol. 81, No. 2 <ref>[https://en.wikipedia.org/wiki/Hartree%E2%80%93Fock_method Hartree–Fock method from Wikipedia]</ref> <ref>[https://en.wikipedia.org/wiki/Linear_combination_of_atomic_orbitals Linear combination of atomic orbitals - Wikipedia]</ref>