J. Sillito, K. De-voider, B. Fisher, and G. Murphy, Managing software change tasks: an exploratory study, 2005 International Symposium on Empirical Software Engineering, 2005., pp.23-32, 2005.
DOI : 10.1109/ISESE.2005.1541811
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.117.4215

J. Singer, T. Lethbridge, N. Vinson, and N. Anquetil, An examinatio n of software engineering work practices. CASCON First Decade High Impact Papers, IBM Corp, pp.174-188, 2010.

A. J. Sellen and R. H. Harper, The myth of the paperless office, 2002.

W. Maalej, R. Tiarks, T. Roehm, and R. Koschke, On the Comprehension of Program Comprehension, ACM Transactions on Software Engineering and Methodology, vol.23, issue.4, pp.1-37, 2014.
DOI : 10.1109/32.508315

R. L. Fowler and A. S. Barker, Effectiveness of highlighting for retention of text material., Journal of Applied Psychology, vol.59, issue.3, p.358, 1974.
DOI : 10.1037/h0036750

C. R. Hynd, M. L. Simpson, and N. D. Chase, Studying narrative text: The effects of annotating vs. journal writing on test performance, Reading Research and Instruction, vol.63, issue.2, pp.44-54, 1989.
DOI : 10.1037/h0031033

M. L. Simpson and S. L. Nist, Textbook Annotation: An Effective and Efficient Study Strategy for College Students, Journal of Reading, vol.34, pp.122-129, 1990.

J. L. Wolfe and C. M. Neuwirth, From the Margins to the Center, Journal of Business and Technical Communication, vol.58, issue.3, pp.333-371, 2001.
DOI : 10.1145/276627.276633

E. Ball, H. Franks, J. Jenkins, M. Mcgrath, and J. Leigh, Annotation is a valuable tool to enhance learning and assessment in student essays, Nurse Education Today, vol.29, issue.3, pp.284-291, 2009.
DOI : 10.1016/j.nedt.2008.10.005

O. 'hara, K. Sellen, and A. , A comparison of reading paper and on -line documents, Proc. CHI 1997, pp.335-342, 1997.

M. R. Morris, A. B. Brush, and B. R. Meyers, Reading Revisited: Evaluating the Usability of Digital Display Surfaces for Active Reading Tasks, Second Annual IEEE International Workshop on Horizontal Interactive Human-Computer Systems (TABLETOP'07), pp.79-86, 2007.
DOI : 10.1109/TABLETOP.2007.12

A. Adler, A. Gujar, B. L. Harrison, K. O-'hara, and A. Sellen, A diary study of work-related reading, Proceedings of the SIGCHI conference on Human factors in computing systems, CHI '98, pp.241-248, 1998.
DOI : 10.1145/274644.274679

M. Hong, A. M. Piper, N. Weibel, S. Olberding, and J. Hollan, Microanalysis of active reading behavior to inform design of interactive desktop workspaces, Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces, ITS '12, pp.215-224, 2012.
DOI : 10.1145/2396636.2396670

B. Jackel, Item Differential in Computer Based and Paper Based Versions of a High Stakes Tertiary Entrance Test: Diagrams and the Problem of Annotation, Proc. Diagrammatic Representation and Inference, pp.71-77, 2014.
DOI : 10.1007/978-3-662-44043-8_12

M. Johnson and R. Nadas, Marginalised behaviour: digital annotations, spatial encoding and the implications for reading comprehension. Learning, Media and Technology, pp.323-336, 2009.

I. Glover, Z. Xu, and G. Hardaker, Online annotation ??? Research and practices, Computers & Education, vol.49, issue.4, pp.1308-1320, 2007.
DOI : 10.1016/j.compedu.2006.02.006

V. Crisp and M. Johnson, The use of annotations in examination marking: opening a window into markers' minds, British Educational Research Journal, vol.42, issue.6, pp.943-961, 2007.
DOI : 10.1145/384267.305840

R. Priest and B. Plimmer, RCA, Proceedings of the 6th ACM SIGCHI New Zealand chapter's international conference on Computer-human interaction design centered HCI, CHINZ '06, pp.53-60, 2006.
DOI : 10.1145/1152760.1152767

A. Bragdon, S. P. Reiss, R. Zeleznik, S. Karumuri, W. Cheung et al., Code bubbles, Proceedings of the 32nd ACM/IEEE International Conference on Software Engineering, ICSE '10
DOI : 10.1145/1806799.1806866

R. Deline, A. Bragdon, K. Rowan, J. Jacobsen, and S. P. Reiss, Debugger Canvas: Industrial experience with the code bubbles paradigm, 2012 34th International Conference on Software Engineering (ICSE), pp.1064-1073, 2012.
DOI : 10.1109/ICSE.2012.6227113

C. J. Sutherland and B. Plimmer, vsInk: integrating digital ink with program code in visual studio, Proc. AUIC'13, pp.13-22, 2013.

L. Lichtschlag, L. Spychalski, and J. Bochers, CodeGraffiti: Using hand-drawn sketches connected to code bases in navigation tasks, 2014 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC), pp.65-68, 2014.
DOI : 10.1109/VLHCC.2014.6883024

X. Chen and B. Plimmer, CodeAnnotator, Proceedings of the 2007 conference of the computer-human interaction special interest group (CHISIG) of Australia on Computer-human interaction: design: activities, artifacts and environments , OZCHI '07, pp.211-214, 2007.
DOI : 10.1145/1324892.1324935

L. Lichtschlag and J. Borchers, CodeGraffiti, Adjunct proceedings of the 23nd annual ACM symposium on User interface software and technology, UIST '10, pp.439-440, 2010.
DOI : 10.1145/1866218.1866260

B. Plimmer, A comparative evaluation of annotation software for grading programming assignments, Proc. AUIC'10, pp.14-22, 2010.

C. C. Marshall, Annotation, Proceedings of the second ACM international conference on Digital libraries , DL '97, pp.131-140, 1997.
DOI : 10.1145/263690.263806

C. C. Marshall and A. J. Brush, Exploring the relationship between personal and public annotations, Proceedings of the 2004 joint ACM/IEEE conference on Digital libraries , JCDL '04, pp.349-357, 2004.
DOI : 10.1145/996350.996432