\BOOKMARK [1][-]{section.1}{Introduction}{}% 1
\BOOKMARK [1][-]{section.2}{The generating functions' approach}{}% 2
\BOOKMARK [1][-]{section.3}{Andrews' generalizations}{}% 3
\BOOKMARK [1][-]{section.4}{Some new identities}{}% 4
\BOOKMARK [1][-]{section.5}{Conclusions}{}% 5
\BOOKMARK [1][-]{section.6}{Acknowledgements}{}% 6