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For some citations, I do not have page number or other information. For example, not all conference papers specify page numbers. When I do not enter these information, the reference shows up sloppy.

For example:

[3] Penner JE. Eects of soot aerosols from aircraft on cirrus cloud. In: DSVS International Workshop on Aviation. 2008,.

As seen, the reference finishes with ,. instead of simply .

Another example is:

[5] Smith GP, Golden DM, Frenklach M, Moriarty NW,Eiteneer B, Goldenberg M, et al. GRI-Mech 3.0. http://www.me.berkeley.edu/gri_mech/; ????

As seen, the missing year appears as ????.

Is there a way to let LaTeX know what parts are missing so it ignores that part. Obviously leaving that section blank does not work. I also cannot change the styling because this is the style for the journal that I am planning to submit my paper.

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closed as not a real question by Joseph Wright Jul 17 '11 at 7:42

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Which style do you use? This may be deliberate (some journals insist that full page details are given). – Joseph Wright Jun 29 '11 at 6:01
elsarticle-template-3-num from Elsevier. elsevier.com/wps/find/authorsview.authors/elsarticle#bibtex – Emre Jun 29 '11 at 6:05
Just re-read the guideline for authors and could not find a mention of forcing all details but I guess it may not be explicitly stated. – Emre Jun 29 '11 at 6:15
Could you edit your question to include a minimal example, showing your .bib entries for the problematic citations. I suspect you may need to alter how you've entered them, but at present I'd be guessing. – Joseph Wright Jun 29 '11 at 7:02
No response from @Emre makes this question impossible to answer as-is. I'll therefore close it. – Joseph Wright Jul 17 '11 at 7:42