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JPA EmbeddedId with Cascade

I know similar questions were posted like thousand times but I didn’t find any that was my case.

Imagine simple oriented graph you want to store using JPA (e.g. 337 more words

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Making TeXworks use tikz package

I need to create a document (I am using TeXworks) that requires the following packages/libraries:

\documentclass{article}
\usepackage{babel}
\usepackage{inputenc}
\usepackage{fontenc}
\usepackage{lmodern}
\usepackage{amsmath, amssymb}
\usepackage{tikz}
\usetikzlibrary{arrows,automata,babel}

I can compile it using TeXworks under Windows but whenever I try to do it under Debian Wheezy I get this error message: 135 more words