The procedure exists, and thus lawful. Whether the procedure was done exactly according to the law, thát we can argue about.
If it's not done according to the law, it's not lawful. And moreover there was no majority of 3/4 in the Parliament, so even a week later the Parliament couldn't have legally removed Yanukovyich. Yanu fled to Russia when he felt that he was close to be unlawfully deposed. This, in itself, shouldn't have happened in a democratic country. Moreover it's not because a government is forced to flee that this government has abdicated its authority.
What I mean that there is a legal procedure to oust the president. And why couldn't they have removed him a week later? Even his own party was done with him and had asked him to resign from the presidency, something he even agreed on in some conversation, but then refused on others. Yanukovich fled to Russia AFTER he was ousted, but because he didn't tell anyone who stayed where he was. He could have stayed in Kharkiv or in Donetsk, but he didn't. He left the nation and started crying about a 'fascist coup', performed, according to him, by the very same people he had signed an agreement with and promised early elections just days before. What a dickhead, working with fascists.
We should also not forget that nobody voted against the resolution, all other MP's were either not present, not voting or abstained, and that Yanukovich was ousted after he had fled Kiev (but before entering Russia). The Parliament building were still protected by Riot Police. Can you tell me why he suddenly decide to flee, after signed an agreement with the opposition? Saying '
If there were armed paramilitarys who wanted to kill me I would leave the land as well. It's better for the healthiness.
Is obviously ignoring the fact that there had been fierce protests and riots for more then four months already and that the heaviest weaponry owned by the rioters were revolvers and rifles. If he was in danger, he could have just gone 20 miles north to his estate and wait for tensions to cool down, protected by bodyguards, helicopters, APC's, tanks, and AK-47's. Obviously, he was in grave danger - or maybe he had just lost support of basically every MP and regional governors in the country.