Flat pork chops a bit, pour few drops of Worcestershire sauce on each side and spread out it. Season with salt and pepper, put them on a plate and pour olive oil over pork chops. Make sure that pork chops are covered with olive oil. Leave them to soak in oil for 60 minutes. Cut white mushrooms into leaves, and wild mushrooms into small pieces (if you have dried mushrooms soak them in cold water for 20 minutes and than cut them into small pieces). Take a frying pan (preferably Teflon, so you don’t have to add more oil), heat it. Cover each chop with flour and than fry it until brownish. When finished, put pork chops aside into warm place, add butter and all mushrooms. Season with salt, green pepper and thyme and sauté until mushrooms are soft. Put back pork chops, add wine and cook on medium fire for 20 minutes. When you see liquid evaporates add beef stock. Cook for 30 more minutes. Before end, remove pork chops aside, add mustard and mix well. Cook for 1 minute, add sour cream and mix again. Put back pork chops, cover with sauce and add parsley leaves. Now it is ready to serve. I would recommend rice or mashed potato to serve with this meal.