@Walter Hinteler,
I suggest for reading about the above mentioned questions/problems:
Monarchy web site -
http://www.royal.gov.uk/,
Robert Blackburn, King and Country, 2006,
Vernon Bogdanor, The Monarchy and the Constitution, 1995,
R Allison and S Riddell (ed), Royal Encyclopaedia, 1991,
Roy Strong, Coronation, 2005,
Janos M Bak, Coronations: Medieval and Early Modern Monarchic Ritual, 1990,
Nicholas Kent, A Modern Monarchy TRG, 1995,
Edward Ratcliff, The Coronation Service of Her Majesty Queen Elizabeth II, SPCK, 1953,
Pauline Stafford (Editor), Gender, Family And the Legitimation of Power: England from the Ninth to Early Twelfth Century (Variorum Collected Studies), 2006
A bit more controversial to the above named 'traditional' literature are the well researched articles, book sections and books by Dr. Alice Hunt (as already said, she's a senior lecturer for English):
Hunt, Alice (2009) The Tudor coronation ceremonies in history and criticism. Literature Compass, 6,
Hunt, Alice (2008) The drama of coronation: medieval ceremony in early modern England, Cambridge, UK, Cambridge University Press, 242pp.,
Hunt, Alice (2010) Reforming tradition: the coronations of Mary and Elizabeth. In, Hunt, Alice and Whitelock, Anna (eds.) Tudor Queenship: The Reigns of Mary and Elizabeth. New York City, US, Palgrave Macmillan , 63-79. (Queenship and Power),
Hunt, Alice (2007) Legitimacy, ceremony and drama: Mary Tudor’s coronation and respublica. In, Happé, Peter and Hüsken, Wim (eds.) Interludes and Early Modern Society: Studies in Gender, Power and Theatricality. Amsterdam, NL, Rodopi, 331-351. (Ludus: Medieval and Early Renaissance Theatre and Drama 9).
To compare the situation in England with that in other European monachies, but still mainly focusing on England:
Nenner, Howard: The Right to be King: The Succession to the Crown of England. 1603-1714, 1995
Just a short, personal and incomplete selection.