ArchiveVolume 8, Issue 2, April 2019
Djurdja Grijak
Pages: 33-37     Published Online: May 15, 2019
DOI: 10.11648/j.pbs.20190802.11        Views 198      Downloads 38
Amada Ampudia Rueda, Guadalupe Sánchez Crespo, Fernando Jiménez Gómez
Pages: 38-44     Published Online: Jun. 4, 2019
DOI: 10.11648/j.pbs.20190802.12        Views 180      Downloads 37
Lu Liu, Sheng Lin, Jinlan Liu, Jingyi Zhang
Pages: 45-54     Published Online: Jun. 15, 2019
DOI: 10.11648/j.pbs.20190802.13        Views 179      Downloads 51
Kan Huang
Pages: 55-60     Published Online: Jun. 15, 2019
DOI: 10.11648/j.pbs.20190802.14        Views 174      Downloads 39
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