?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hoang%2C+Nam+Nhat&rft.aulast=Hoang&rft.aufirst=Nam+Nhat&rft.issue=3&rft.volume=34&rft.date=September+2018&rft.issn=0866-8612&rft.atitle=Valence+Illustration+for+Large+Structure%3A+A+Fast+Empirical+Approach+Based+on+Bond-Valence+Method&rft.title=VNU+Journal+of+Science%3A+Mathematics+%E2%80%93+Physics&rft.pages=85-89&rft.genre=article