A 3/2-approximation for big two-bar charts packing. - Adil I. Erzin; Stepan Nazarenko; Gregory Melidi; Roman V. Plotnikov (CoRR, 2020)

Approximation Algorithms for Two-Bar Charts Packing Problem. - Adil I. Erzin; Gregory Melidi; Stepan Nazarenko; Roman V. Plotnikov (CoRR, 2021)

A 3/2-approximation for big two-bar charts packing. - Adil I. Erzin; Georgii Melidi; Stepan Nazarenko; Roman V. Plotnikov (J. Comb. Optim., 2021)

Two-Bar Charts Packing Problem. - Adil I. Erzin; Gregory Melidi; Stepan Nazarenko; Roman V. Plotnikov (Optim. Lett., 2021)

A 4/3·OPT+2/3 approximation for big two-bar charts packing problem. - Adil I. Erzin; Alexander Kononov; Georgii Melidi; Stepan Nazarenko (CoRR, 2022)