@inbook{00ad214370434a65a12327815bf101f7,
title = "Open problems",
abstract = "Despite many interesting results on the Harary index and additively or multiplicatively weighted Harary index of graphs reported in the previous chapters, there are still some complicated and challenging problems, which remain open to us, on this topic.",
author = "Kexiang Xu and Das, \{Kinkar Ch\} and Nenad Trinajsti{\'c}",
note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",
year = "2015",
doi = "10.1007/978-3-662-45843-3\_6",
language = "English",
series = "SpringerBriefs in Applied Sciences and Technology",
publisher = "Springer Verlag",
number = "9783662458426",
pages = "69--74",
booktitle = "SpringerBriefs in Applied Sciences and Technology",
edition = "9783662458426",
}