A PHP Error was encountered

Severity: Notice

Message: Only variables should be passed by reference

Filename: gettext/gettext.php

Line Number: 66


%Aigaion2 BibTeX export from 
%Tuesday 16 December 2025 07:35:28 PM

@TECHREPORT{,
       author = {Fernández-Madrigal, Juan-Antonio},
        title = {An Algorithm which Approaches the Exact Solution for the Problem of Constructing a Hierarchical Graph that Satisfies the Sufficient Condition for Optimality},
         year = {1998},
  institution = {Computer Science Dpt. - University of Texas at Austin (USA) / System Engineering and Automation Dpt. - University of Málaga (Spain)}
}