@misc{Bachorz_Rafał_A., author={Bachorz Rafał A.}, address={Poznań}, howpublished={online}, publisher={OWN}, language={eng}, abstract={The method of exponentially correlated Gaussian (ECG) wave functions is extended to the case of multicenter molecular systems with nuclei arranged in a 3-dimensional space. A particular case of a four-center two-electron system, H 2+ 4 , is studied by means of the variational approach. The energies reported in this work are the most accurate available to date.}, type={artykuł}, }