Some very important download info

Hm. Finally I've found the solution for my server bug, I guess.
I will continue uploading sheets in pdf , as most comfortable, on a new file hosting - www.ifolder.ru
As most of you are not Russians(I guess so), here's a small tutorial for you:
1. Click on a link
2. On the next window type 4 digits you see on screen in form below.Then click "Далее" button. Which actually means "Next" in russian.
3. On last screen the link is waiting for you. It works for your IP only for 3 days. Otherwise you have to generate it again.

My server has some limit in internal (russian) and external (non-russian) traffic ratio. In some cases after entering code from picture and clicking on the generated link you may get to this page
****
Сообщение

На данный момент иностранный трафик у этого файла превышает Российский.
Вы можете получить этот файл только если посетите сайт наших рекламодателей помогающих оплачивать наши сервера и каналы. Нажмите сюда чтобы перейти к выбору рекламодателей.
****
This is a server advert. Click on the link in this text. And choose any sponsor site. In 30 sec while you're wathing the sponsor site page you'll get the link in the top of the page right upon the solid black line.
I assure you that these are absolutely inoffensive sites and I am very sorry as it may seem unconvinient for some of you.. but it's just the way it is.