Pavlíková, Soňa, 1965- On construction of upper and lower bounds for the homo-lumo spectral gap / aut. Soňa Pavlíková, Daniel Ševčovič. -- 10.3934/naco.2019005. -- 000447600900005. Ševčovič, Daniel, 1965- In: Numerical Algebra, Control and Optimization. -- ISSN 2155-3289. -- Vol. 9, iss. 1 (2019), s. 53-69.