Sub Articulo 28.0
\begin{verbatim}
+-----------------------------------------+
| +-----------------+ |
| texts ........ | | |
| ............... | Fig. 1 | |
| ............... | | |
| ............... +-----------------+ |
| ............... texts ......... |
| ............. ............... |
| ............... ............... |
| ............... ............ |
| |
| +------------------------------------+ +
| | | |
| | | |
| | | |
| | Fig. 2 | |
| | | |
| +------------------------------------+ +
+-----------------------------------------+
\end{verbatim}
This is not possible. twocolumn know how to handle wide
figures using figure* environment, but they are always
placed on the top of your page.