<http://schema.org/datePublished>
"2013-10-02T16:35:58Z"^^<http://schema.org/Date>
<http://chemwiki.ucdavis.edu/Physical_Chemistry/Quantum_Mechanics/09._The_Hydrogen_Atom/Atomic_Theory/Case_Study%3A_Quarks_and_other_sub-Nucleon_Particles>