String dataDir = Utils.getSharedDataDir(LoadingNotebook.class) + "Notebook/";
Notebook rootNotebook = new Notebook(dataDir + "test.onetoc2");

List<RichText> allRichTextNodes = rootNotebook.getChildNodes(RichText.class);
for (RichText richTextNode : allRichTextNodes) {
	System.out.println(richTextNode.getText());
}