Sergei Lyapunov "Christmas Night"

[indianajo]

I'm trying to buy Sergei Lachinoff Christmas Night sheet music of a piece I heard on WFMT service a couple of years ago.  I don't know about the spelling.  It was a piano solo piece.
Bing thinks I mean Sergei Lavrov, foreign minister of Russia.  Piano street thinks I mean Sergei Rachmanoff, subject of every other topic here. Amazon thinks I want a novel titled Sergei.
Does anybody know 1. the spelling? 2. A place to buy the sheet music?
I have 9 weeks until Christmas to learn it.  
PS I don't maintain a printer on my home computer. I don't like buying a new $36 cartridge every 10 weeks.  Especially an imported one.  They dry up, perhaps because I only print about 3 pages a year.  
Edit 11/6/14 the subsequent answers have the American "correct" spelling, so I've changed the title. 

[visitor]

I only know of the Sergei Lyapunov Quatre Tableaux (which are LOVELEY!), sometimes referred to as Christmas song(s); "Fetes de Noel" , Op 41 should be on IMSLP
ie

[indianajo]

Thanks for posting these.  I'll go to the library and try to print them there off IMSLP.org.
Edit, I've been listening to other U-tube suggestions.  I need to live until I'm 105, I want to play the Lyapunov Variation and Fugue on a Russian Theme and the Variation on a Georgian Theme:

Where has the radio been hiding this fellow? I just heard of him at 2 AM a couple of days before Christmas a couple of years ago.  
I like that most of his tricks are in the left hand, and that he uses the whole piano.  My little Steinway console is so beautiful in the top octave.  
Did anybody hear Tony Bennett and lady Gaga sing about living until 105 on PBS last Friday night?  (or rerun last night?)  Tony's doing pretty well at age 88 on jazz standards: I'm glad he didn't drag out Heart in San Francisco again.  Dancing Cheek to Cheek is much more my fantasy.
Update, IMSLP.org linked to Performance Editions of Indianapolis which promised to send me a copy by media mail for $6.19 off the debit card.  Very satisfactory price; it's raining today and snowing tonight, no bicycle trip to the library necessary.  
Update 11/6/14
I received the Performer's edition of this work today, and the opus 1 is headed "Nuit de Noel".
Which is exactly what I was looking for: Christmas night. I've edited the title to get rid of my over the radio spelling attempt, which was totally incorrect.  
Op 2 is "Cortege des mages" Op 3 is "Chanteurs de Noels" and Op 4 is "Chant de Noel"
Which I anglicize as Procession of Magicians, Christmas singers, and Christmas Song.
I'm glad we and the Russians have something in common.  
PE is a bifold copy, stapled with a cover. It was worth the $6.19 to have it printed and delivered to me.  Opus 1 reminds me of icecycles on trees after a long rain and  hard freeze, which is a delightful spectacle to look out the window at from indoors.