“Thermal analysis, camphene hydroformylation and hydrogenation of limonene with triphenylphosphine complexes, ruthenium (II) containing n-heterocyclic ligands”, Rev. Invest. Univ. Quindío, vol. 20, no. 1, pp. 18–23, Dec. 2010, doi: 10.33975/riuq.vol20n1.701.