Hi Margherita, I don't have your text, but a bail in is where the bondholders or even other creditors bear the losses. The Financial Times newspaper's lexicon explains in-depth.
http://lexicon.ft.com/Term?term=bail_in Again in the case of Cyprus banks not only the bondholders but also current account holders had to "bail in"
The Economist explains: What is a bail-in? | The Economist
www.economist.com/blogs/economist-explains/.../economist-ex...7 Apr 2013 - By contrast, a bail-in, a term first popularised in the pages of The Economist, forces the borrower's creditors to bear some of the burden by having part of the debt they are owed written off. (In the case of Cyprus, the creditors in question were bondholders, and depositors with more than €100,000 in their accounts.)
Traditionally, if a bank is in trouble it can go to the market and try to raise more equity or issue more bonds to raise loan capital or ask the government to bail it out. A government can give it cash either by buying shares in the bank or by buying bonds it has issued. Alternatively it can guarantee the bank's borrowings.