I am writing a report and the brackets in my bibliography remain empty, also the citations in text are question marks. How do I get numbers in them?

This is my code:


\usepackage{amsthm, amsmath}

Some text \cite{carmeliet2000}. 
Extra text \cite{alberts2002}. 


It shows the references in the bibliography, but does not put numbers in the brackets, in the bibliography as well as in the text.

allsources.bib looks like:

@ARTICLE {carmeliet2000,
author  = "Peter Carmeliet and Rakesh K. Jain",
title   = "Angiogenesis in cancer and other diseases",
journal = "Nature",
year    = "2000",
volume  = "407",
pages   = "249-257",
month   = "sep",
DOI     = "doi:10.1038/35025220"

@BOOK {alberts2002,
author    = "Alberts B. and Johnson A. and Lewis J. et al",
title     = "\textit{Blood Vessels and Endothelial Cells} in Molecular 
Biology of the Cell",
publisher = "New York: Garland Science",
year      = "2002",
edition   = "fourth"
  • 1
    Welcome to Tex.Se. The numbers are displaying, I have executed the same file. All you need to do this is that, run twice the source file.
    – M S
    Commented May 8, 2018 at 12:49
  • I did run it several times now, but still no numbers
    – laura
    Commented May 8, 2018 at 12:54
  • Clean the auxiliary files once, then run the source file twice.
    – M S
    Commented May 8, 2018 at 12:58
  • Off-topic: The author field of the second entry should be "Alberts, B. and Johnson, A. and Lewis, J. and others",`. Note the insertion of three commas between surnames and initials and the replacement of "et al" with "and others".
    – Mico
    Commented May 8, 2018 at 13:53

1 Answer 1


Just check the attached image. If you are using tex studio, go to Tools -> clean auxiliary files, then run the file twice.

enter image description here

  • 2
    Don't forget to provide the instruction that BibTeX needs to be run... (Not running BibTeX is what appears to be the OP's problem.)
    – Mico
    Commented May 8, 2018 at 13:47
  • As suggested by Mico, you need to run bibtex too soon after compiling your source file.
    – M S
    Commented May 8, 2018 at 13:49
  • I have done all that. I use Texmaker and my quick build is PdfLatex Bibtex PdfLatex (2x) Show Pdf. It shows the references in the bibliography, but just not the numbers between the square brackets.
    – laura
    Commented May 9, 2018 at 8:32

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